[cfe] Report errors on attempts to call a record type

Closes https://github.com/dart-lang/sdk/issues/54616

Change-Id: Ib0a74ae139a56e0660b3cfb00127c898d693a03c
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/349000
Reviewed-by: Johnni Winther <johnniwinther@google.com>
Commit-Queue: Chloe Stefantsova <cstefantsova@google.com>

pkg/_fe_analyzer_shared/lib/src/messages/codes_generated.dart

@@ -12672,6 +12672,15 @@ const MessageCode messageRecordTypeZeroFieldsButTrailingComma =
             r"""A record type without fields can't have a trailing comma.""",
         correctionMessage: r"""Try removing the trailing comma.""");
 
+// DO NOT EDIT. THIS FILE IS GENERATED. SEE TOP OF FILE.
+const Code<Null> codeRecordUsedAsCallable = messageRecordUsedAsCallable;
+
+// DO NOT EDIT. THIS FILE IS GENERATED. SEE TOP OF FILE.
+const MessageCode messageRecordUsedAsCallable = const MessageCode(
+    "RecordUsedAsCallable",
+    problemMessage:
+        r"""The 'call' property on the record type isn't directly callable but could be invoked by `.call(...)`""");
+
 // DO NOT EDIT. THIS FILE IS GENERATED. SEE TOP OF FILE.
 const Code<Null> codeRedirectingConstructorWithAnotherInitializer =
     messageRedirectingConstructorWithAnotherInitializer;

pkg/front_end/lib/src/fasta/type_inference/inference_visitor_base.dart

@@ -9,8 +9,6 @@ import 'package:_fe_analyzer_shared/src/flow_analysis/flow_analysis_operations.d
 import 'package:_fe_analyzer_shared/src/type_inference/assigned_variables.dart';
 import 'package:_fe_analyzer_shared/src/testing/id.dart';
 import 'package:_fe_analyzer_shared/src/util/link.dart';
-import 'package:front_end/src/fasta/source/source_field_builder.dart';
-import 'package:front_end/src/fasta/source/source_procedure_builder.dart';
 import 'package:kernel/ast.dart';
 import 'package:kernel/class_hierarchy.dart'
     show ClassHierarchyBase, ClassHierarchyMembers;
@@ -43,8 +41,10 @@ import '../kernel/type_algorithms.dart' show hasAnyTypeVariables;
 import '../names.dart';
 import '../problems.dart' show internalProblem, unhandled;
 import '../source/source_constructor_builder.dart';
+import '../source/source_field_builder.dart';
 import '../source/source_library_builder.dart'
     show FieldNonPromotabilityInfo, SourceLibraryBuilder;
+import '../source/source_procedure_builder.dart';
 import '../util/helpers.dart';
 import 'closure_context.dart';
 import 'external_ast_helper.dart';
@@ -3380,6 +3380,10 @@ abstract class InferenceVisitorBase implements InferenceVisitor {
             hoistedExpressions: hoistedExpressions);
       case ObjectAccessTargetKind.recordNamed:
       case ObjectAccessTargetKind.nullableRecordNamed:
+        if (isImplicitCall && !target.isNullable) {
+          libraryBuilder.addProblem(messageRecordUsedAsCallable,
+              receiver.fileOffset, noLength, libraryBuilder.fileUri);
+        }
         DartType type = target.getGetterType(this);
         Expression read = new RecordNameGet(receiver,
             target.receiverType as RecordType, target.recordFieldName!)

pkg/front_end/messages.status

@@ -631,6 +631,12 @@ JsInteropExternalExtensionMemberWithStaticDisallowed/analyzerCode: Fail # Web co
 JsInteropExternalExtensionMemberWithStaticDisallowed/example: Fail # Web compiler specific
 JsInteropExternalMemberNotJSAnnotated/analyzerCode: Fail # Web compiler specific
 JsInteropExternalMemberNotJSAnnotated/example: Fail # Web compiler specific
+JsInteropFunctionToJSRequiresStaticType/analyzerCode: Fail # Web compiler specific
+JsInteropFunctionToJSRequiresStaticType/example: Fail # Web compiler specific
+JsInteropFunctionToJSTypeParameters/analyzerCode: Fail # Web compiler specific
+JsInteropFunctionToJSTypeParameters/example: Fail # Web compiler specific
+JsInteropInvalidStaticClassMemberName/analyzerCode: Fail
+JsInteropInvalidStaticClassMemberName/example: Fail
 JsInteropIsAInvalidType/analyzerCode: Fail # Web compiler specific
 JsInteropIsAInvalidType/example: Fail # Web compiler specific
 JsInteropIsAObjectLiteralType/analyzerCode: Fail # Web compiler specific
@@ -639,12 +645,6 @@ JsInteropIsAPrimitiveExtensionType/analyzerCode: Fail # Web compiler specific
 JsInteropIsAPrimitiveExtensionType/example: Fail # Web compiler specific
 JsInteropIsATearoff/analyzerCode: Fail # Web compiler specific
 JsInteropIsATearoff/example: Fail # Web compiler specific
-JsInteropFunctionToJSRequiresStaticType/analyzerCode: Fail # Web compiler specific
-JsInteropFunctionToJSRequiresStaticType/example: Fail # Web compiler specific
-JsInteropFunctionToJSTypeParameters/analyzerCode: Fail # Web compiler specific
-JsInteropFunctionToJSTypeParameters/example: Fail # Web compiler specific
-JsInteropInvalidStaticClassMemberName/analyzerCode: Fail
-JsInteropInvalidStaticClassMemberName/example: Fail
 JsInteropJSClassExtendsDartClass/analyzerCode: Fail # Web compiler specific
 JsInteropJSClassExtendsDartClass/example: Fail # Web compiler specific
 JsInteropNamedParameters/analyzerCode: Fail # Web compiler specific
@@ -930,6 +930,9 @@ PrefixAfterCombinator/example: Fail
 PreviousUseOfName/analyzerCode: Fail
 PreviousUseOfName/example: Fail
 PrivateNamedParameter/example: Fail
+RecordUsedAsCallable/analyzerCode: Fail
+RecordUsedAsCallable/part_wrapped_script: Fail
+RecordUsedAsCallable/script: Fail
 RedirectingConstructorWithBody/part_wrapped_script1: Fail
 RedirectingConstructorWithBody/script1: Fail
 RedirectingFactoryIncompatibleTypeArgumentWarning/example: Fail

pkg/front_end/messages.yaml

@@ -7619,3 +7619,8 @@ ExtensionTypeImplementsDeferred:
       extension type ET(d.A id) implements d.A {}
     lib.dart: |
       class A {}
+
+RecordUsedAsCallable:
+  problemMessage: "The 'call' property on the record type isn't directly callable but could be invoked by `.call(...)`"
+  script: |
+    test(({dynamic call} r) => r(0);

pkg/front_end/testcases/records/issue54616.dart

@@ -0,0 +1,17 @@
+// Copyright (c) 2024, the Dart project authors.  Please see the AUTHORS file
+// for details. All rights reserved. Use of this source code is governed by a
+// BSD-style license that can be found in the LICENSE file.
+
+void main() {
+  var c = (call: (int x) => x);
+  var v = c(1); // Error.
+
+  var c2 = (call: intId);
+  var v2 = c2(1); // Error.
+
+  var c3 = (call: <T>(T x) => x);
+  var v3a = c3(1); // Error.
+  var v3b = c3("a"); // Error.
+}
+
+int intId(int x) => x;

pkg/front_end/testcases/records/issue54616.dart.strong.expect

@@ -0,0 +1,39 @@
+library;
+//
+// Problems in library:
+//
+// pkg/front_end/testcases/records/issue54616.dart:7:11: Error: The 'call' property on the record type isn't directly callable but could be invoked by `.call(...)`
+//   var v = c(1); // Error.
+//           ^
+//
+// pkg/front_end/testcases/records/issue54616.dart:10:12: Error: The 'call' property on the record type isn't directly callable but could be invoked by `.call(...)`
+//   var v2 = c2(1); // Error.
+//            ^
+//
+// pkg/front_end/testcases/records/issue54616.dart:13:13: Error: The 'call' property on the record type isn't directly callable but could be invoked by `.call(...)`
+//   var v3a = c3(1); // Error.
+//             ^
+//
+// pkg/front_end/testcases/records/issue54616.dart:14:13: Error: The 'call' property on the record type isn't directly callable but could be invoked by `.call(...)`
+//   var v3b = c3("a"); // Error.
+//             ^
+//
+import self as self;
+import "dart:core" as core;
+
+static method main() → void {
+  ({call: (core::int) → core::int}) c = ({call: (core::int x) → core::int => x});
+  core::int v = c.call{(core::int) → core::int}(1){(core::int) → core::int};
+  ({call: (core::int) → core::int}) c2 = #C2;
+  core::int v2 = c2.call{(core::int) → core::int}(1){(core::int) → core::int};
+  ({call: <T extends core::Object? = dynamic>(T%) → T%}) c3 = ({call: <T extends core::Object? = dynamic>(T% x) → T% => x});
+  core::int v3a = c3.call{<T extends core::Object? = dynamic>(T%) → T%}<core::int>(1){(core::int) → core::int};
+  core::String v3b = c3.call{<T extends core::Object? = dynamic>(T%) → T%}<core::String>("a"){(core::String) → core::String};
+}
+static method intId(core::int x) → core::int
+  return x;
+
+constants  {
+  #C1 = static-tearoff self::intId
+  #C2 = ({call:#C1})
+}

pkg/front_end/testcases/records/issue54616.dart.strong.transformed.expect

@@ -0,0 +1,39 @@
+library;
+//
+// Problems in library:
+//
+// pkg/front_end/testcases/records/issue54616.dart:7:11: Error: The 'call' property on the record type isn't directly callable but could be invoked by `.call(...)`
+//   var v = c(1); // Error.
+//           ^
+//
+// pkg/front_end/testcases/records/issue54616.dart:10:12: Error: The 'call' property on the record type isn't directly callable but could be invoked by `.call(...)`
+//   var v2 = c2(1); // Error.
+//            ^
+//
+// pkg/front_end/testcases/records/issue54616.dart:13:13: Error: The 'call' property on the record type isn't directly callable but could be invoked by `.call(...)`
+//   var v3a = c3(1); // Error.
+//             ^
+//
+// pkg/front_end/testcases/records/issue54616.dart:14:13: Error: The 'call' property on the record type isn't directly callable but could be invoked by `.call(...)`
+//   var v3b = c3("a"); // Error.
+//             ^
+//
+import self as self;
+import "dart:core" as core;
+
+static method main() → void {
+  ({call: (core::int) → core::int}) c = ({call: (core::int x) → core::int => x});
+  core::int v = c.call{(core::int) → core::int}(1){(core::int) → core::int};
+  ({call: (core::int) → core::int}) c2 = #C2;
+  core::int v2 = c2.call{(core::int) → core::int}(1){(core::int) → core::int};
+  ({call: <T extends core::Object? = dynamic>(T%) → T%}) c3 = ({call: <T extends core::Object? = dynamic>(T% x) → T% => x});
+  core::int v3a = c3.call{<T extends core::Object? = dynamic>(T%) → T%}<core::int>(1){(core::int) → core::int};
+  core::String v3b = c3.call{<T extends core::Object? = dynamic>(T%) → T%}<core::String>("a"){(core::String) → core::String};
+}
+static method intId(core::int x) → core::int
+  return x;
+
+constants  {
+  #C1 = static-tearoff self::intId
+  #C2 = ({call:#C1})
+}

pkg/front_end/testcases/records/issue54616.dart.textual_outline.expect

@@ -0,0 +1,3 @@
+void main() {}
+
+int intId(int x) => x;

pkg/front_end/testcases/records/issue54616.dart.textual_outline_modelled.expect

@@ -0,0 +1,3 @@
+int intId(int x) => x;
+
+void main() {}

pkg/front_end/testcases/records/issue54616.dart.weak.expect

@@ -0,0 +1,39 @@
+library;
+//
+// Problems in library:
+//
+// pkg/front_end/testcases/records/issue54616.dart:7:11: Error: The 'call' property on the record type isn't directly callable but could be invoked by `.call(...)`
+//   var v = c(1); // Error.
+//           ^
+//
+// pkg/front_end/testcases/records/issue54616.dart:10:12: Error: The 'call' property on the record type isn't directly callable but could be invoked by `.call(...)`
+//   var v2 = c2(1); // Error.
+//            ^
+//
+// pkg/front_end/testcases/records/issue54616.dart:13:13: Error: The 'call' property on the record type isn't directly callable but could be invoked by `.call(...)`
+//   var v3a = c3(1); // Error.
+//             ^
+//
+// pkg/front_end/testcases/records/issue54616.dart:14:13: Error: The 'call' property on the record type isn't directly callable but could be invoked by `.call(...)`
+//   var v3b = c3("a"); // Error.
+//             ^
+//
+import self as self;
+import "dart:core" as core;
+
+static method main() → void {
+  ({call: (core::int) → core::int}) c = ({call: (core::int x) → core::int => x});
+  core::int v = c.call{(core::int) → core::int}(1){(core::int) → core::int};
+  ({call: (core::int) → core::int}) c2 = #C2;
+  core::int v2 = c2.call{(core::int) → core::int}(1){(core::int) → core::int};
+  ({call: <T extends core::Object? = dynamic>(T%) → T%}) c3 = ({call: <T extends core::Object? = dynamic>(T% x) → T% => x});
+  core::int v3a = c3.call{<T extends core::Object? = dynamic>(T%) → T%}<core::int>(1){(core::int) → core::int};
+  core::String v3b = c3.call{<T extends core::Object? = dynamic>(T%) → T%}<core::String>("a"){(core::String) → core::String};
+}
+static method intId(core::int x) → core::int
+  return x;
+
+constants  {
+  #C1 = static-tearoff self::intId
+  #C2 = ({call:#C1})
+}

pkg/front_end/testcases/records/issue54616.dart.weak.modular.expect

@@ -0,0 +1,39 @@
+library;
+//
+// Problems in library:
+//
+// pkg/front_end/testcases/records/issue54616.dart:7:11: Error: The 'call' property on the record type isn't directly callable but could be invoked by `.call(...)`
+//   var v = c(1); // Error.
+//           ^
+//
+// pkg/front_end/testcases/records/issue54616.dart:10:12: Error: The 'call' property on the record type isn't directly callable but could be invoked by `.call(...)`
+//   var v2 = c2(1); // Error.
+//            ^
+//
+// pkg/front_end/testcases/records/issue54616.dart:13:13: Error: The 'call' property on the record type isn't directly callable but could be invoked by `.call(...)`
+//   var v3a = c3(1); // Error.
+//             ^
+//
+// pkg/front_end/testcases/records/issue54616.dart:14:13: Error: The 'call' property on the record type isn't directly callable but could be invoked by `.call(...)`
+//   var v3b = c3("a"); // Error.
+//             ^
+//
+import self as self;
+import "dart:core" as core;
+
+static method main() → void {
+  ({call: (core::int) → core::int}) c = ({call: (core::int x) → core::int => x});
+  core::int v = c.call{(core::int) → core::int}(1){(core::int) → core::int};
+  ({call: (core::int) → core::int}) c2 = #C2;
+  core::int v2 = c2.call{(core::int) → core::int}(1){(core::int) → core::int};
+  ({call: <T extends core::Object? = dynamic>(T%) → T%}) c3 = ({call: <T extends core::Object? = dynamic>(T% x) → T% => x});
+  core::int v3a = c3.call{<T extends core::Object? = dynamic>(T%) → T%}<core::int>(1){(core::int) → core::int};
+  core::String v3b = c3.call{<T extends core::Object? = dynamic>(T%) → T%}<core::String>("a"){(core::String) → core::String};
+}
+static method intId(core::int x) → core::int
+  return x;
+
+constants  {
+  #C1 = static-tearoff self::intId
+  #C2 = ({call:#C1})
+}

pkg/front_end/testcases/records/issue54616.dart.weak.outline.expect

@@ -0,0 +1,8 @@
+library;
+import self as self;
+import "dart:core" as core;
+
+static method main() → void
+  ;
+static method intId(core::int x) → core::int
+  ;

pkg/front_end/testcases/records/issue54616.dart.weak.transformed.expect

@@ -0,0 +1,39 @@
+library;
+//
+// Problems in library:
+//
+// pkg/front_end/testcases/records/issue54616.dart:7:11: Error: The 'call' property on the record type isn't directly callable but could be invoked by `.call(...)`
+//   var v = c(1); // Error.
+//           ^
+//
+// pkg/front_end/testcases/records/issue54616.dart:10:12: Error: The 'call' property on the record type isn't directly callable but could be invoked by `.call(...)`
+//   var v2 = c2(1); // Error.
+//            ^
+//
+// pkg/front_end/testcases/records/issue54616.dart:13:13: Error: The 'call' property on the record type isn't directly callable but could be invoked by `.call(...)`
+//   var v3a = c3(1); // Error.
+//             ^
+//
+// pkg/front_end/testcases/records/issue54616.dart:14:13: Error: The 'call' property on the record type isn't directly callable but could be invoked by `.call(...)`
+//   var v3b = c3("a"); // Error.
+//             ^
+//
+import self as self;
+import "dart:core" as core;
+
+static method main() → void {
+  ({call: (core::int) → core::int}) c = ({call: (core::int x) → core::int => x});
+  core::int v = c.call{(core::int) → core::int}(1){(core::int) → core::int};
+  ({call: (core::int) → core::int}) c2 = #C2;
+  core::int v2 = c2.call{(core::int) → core::int}(1){(core::int) → core::int};
+  ({call: <T extends core::Object? = dynamic>(T%) → T%}) c3 = ({call: <T extends core::Object? = dynamic>(T% x) → T% => x});
+  core::int v3a = c3.call{<T extends core::Object? = dynamic>(T%) → T%}<core::int>(1){(core::int) → core::int};
+  core::String v3b = c3.call{<T extends core::Object? = dynamic>(T%) → T%}<core::String>("a"){(core::String) → core::String};
+}
+static method intId(core::int x) → core::int
+  return x;
+
+constants  {
+  #C1 = static-tearoff self::intId
+  #C2 = ({call:#C1})
+}

pkg/front_end/testcases/records/issue54616_2.dart

@@ -0,0 +1,52 @@
+// Copyright (c) 2024, the Dart project authors.  Please see the AUTHORS file
+// for details. All rights reserved. Use of this source code is governed by a
+// BSD-style license that can be found in the LICENSE file.
+
+extension EInt on (int,) {
+  dynamic call(dynamic x) => x;
+}
+
+extension EIntIntCallInt on (int, int, {dynamic Function(dynamic) call}) {
+  dynamic call(dynamic x) => x;
+}
+
+test<X1 extends (int,), X2 extends (int, {dynamic Function(dynamic) call}), X3 extends (int, int, {dynamic Function(dynamic) call}), X4 extends (String,)>(
+    (int,) r1,
+    (int, {dynamic Function(dynamic) call}) r2,
+    (int, int, {dynamic Function(dynamic) call}) r3,
+    (String,) r4,
+    X1 x1,
+    X2 x2,
+    X3 x3,
+    X4 x4,
+    X1? x1n,
+    X2? x2n,
+    X3? x3n,
+    X4? x4n) {
+  r1(0); // Ok.
+  r2(0); // Error.
+  r3(0); // Error.
+  r4(0); // Error.
+  r1.call(0); // Ok.
+  r2.call(0); // Ok.
+  r3.call(0); // Ok.
+  r4.call(0); // Error.
+
+  x1(0); // Ok.
+  x2(0); // Error.
+  x3(0); // Error.
+  x4(0); // Error.
+  x1n(0); // Error.
+  x2n(0); // Error.
+  x3n(0); // Error.
+  x4n(0); // Error.
+
+  x1.call(0); // Ok.
+  x2.call(0); // Ok.
+  x3.call(0); // Ok.
+  x4.call(0); // Error.
+  x1n.call(0); // Error.
+  x2n.call(0); // Error.
+  x3n.call(0); // Error.
+  x4n.call(0); // Error.
+}

pkg/front_end/testcases/records/issue54616_2.dart.strong.expect

@@ -0,0 +1,161 @@
+library;
+//
+// Problems in library:
+//
+// pkg/front_end/testcases/records/issue54616_2.dart:27:3: Error: The 'call' property on the record type isn't directly callable but could be invoked by `.call(...)`
+//   r2(0); // Error.
+//   ^
+//
+// pkg/front_end/testcases/records/issue54616_2.dart:28:3: Error: The 'call' property on the record type isn't directly callable but could be invoked by `.call(...)`
+//   r3(0); // Error.
+//   ^
+//
+// pkg/front_end/testcases/records/issue54616_2.dart:29:5: Error: The method 'call' isn't defined for the class '(String)'.
+// Try correcting the name to the name of an existing method, or defining a method named 'call'.
+//   r4(0); // Error.
+//     ^
+//
+// pkg/front_end/testcases/records/issue54616_2.dart:33:6: Error: The method 'call' isn't defined for the class '(String)'.
+// Try correcting the name to the name of an existing method, or defining a method named 'call'.
+//   r4.call(0); // Error.
+//      ^^^^
+//
+// pkg/front_end/testcases/records/issue54616_2.dart:36:3: Error: The 'call' property on the record type isn't directly callable but could be invoked by `.call(...)`
+//   x2(0); // Error.
+//   ^
+//
+// pkg/front_end/testcases/records/issue54616_2.dart:37:3: Error: The 'call' property on the record type isn't directly callable but could be invoked by `.call(...)`
+//   x3(0); // Error.
+//   ^
+//
+// pkg/front_end/testcases/records/issue54616_2.dart:38:5: Error: The method 'call' isn't defined for the class '(String)'.
+// Try correcting the name to the name of an existing method, or defining a method named 'call'.
+//   x4(0); // Error.
+//     ^
+//
+// pkg/front_end/testcases/records/issue54616_2.dart:39:6: Error: Can't use an expression of type 'X1?' as a function because it's potentially null.
+// Try calling using ?.call instead.
+//   x1n(0); // Error.
+//      ^
+//
+// pkg/front_end/testcases/records/issue54616_2.dart:40:6: Error: Can't use an expression of type 'X2?' as a function because it's potentially null.
+// Try calling using ?.call instead.
+//   x2n(0); // Error.
+//      ^
+//
+// pkg/front_end/testcases/records/issue54616_2.dart:41:6: Error: Can't use an expression of type 'X3?' as a function because it's potentially null.
+// Try calling using ?.call instead.
+//   x3n(0); // Error.
+//      ^
+//
+// pkg/front_end/testcases/records/issue54616_2.dart:42:6: Error: The method 'call' isn't defined for the class '(String)?'.
+// Try correcting the name to the name of an existing method, or defining a method named 'call'.
+//   x4n(0); // Error.
+//      ^
+//
+// pkg/front_end/testcases/records/issue54616_2.dart:47:6: Error: The method 'call' isn't defined for the class '(String)'.
+// Try correcting the name to the name of an existing method, or defining a method named 'call'.
+//   x4.call(0); // Error.
+//      ^^^^
+//
+// pkg/front_end/testcases/records/issue54616_2.dart:48:7: Error: Method 'call' cannot be called on 'X1?' because it is potentially null.
+// Try calling using ?. instead.
+//   x1n.call(0); // Error.
+//       ^^^^
+//
+// pkg/front_end/testcases/records/issue54616_2.dart:49:7: Error: Can't use an expression of type 'X2?' as a function because it's potentially null.
+// Try calling using ?.call instead.
+//   x2n.call(0); // Error.
+//       ^
+//
+// pkg/front_end/testcases/records/issue54616_2.dart:50:7: Error: Can't use an expression of type 'X3?' as a function because it's potentially null.
+// Try calling using ?.call instead.
+//   x3n.call(0); // Error.
+//       ^
+//
+// pkg/front_end/testcases/records/issue54616_2.dart:51:7: Error: The method 'call' isn't defined for the class '(String)?'.
+// Try correcting the name to the name of an existing method, or defining a method named 'call'.
+//   x4n.call(0); // Error.
+//       ^^^^
+//
+import self as self;
+import "dart:core" as core;
+
+extension EInt on (core::int) {
+  method call = self::EInt|call;
+  method tearoff call = self::EInt|get#call;
+}
+extension EIntIntCallInt on (core::int, core::int, {required call: (dynamic) → dynamic}) {
+  method call = self::EIntIntCallInt|call;
+  method tearoff call = self::EIntIntCallInt|get#call;
+}
+static extension-member method EInt|call(lowered final(core::int) #this, dynamic x) → dynamic
+  return x;
+static extension-member method EInt|get#call(lowered final(core::int) #this) → (dynamic) → dynamic
+  return (dynamic x) → dynamic => self::EInt|call(#this, x);
+static extension-member method EIntIntCallInt|call(lowered final(core::int, core::int, {required call: (dynamic) → dynamic}) #this, dynamic x) → dynamic
+  return x;
+static extension-member method EIntIntCallInt|get#call(lowered final(core::int, core::int, {required call: (dynamic) → dynamic}) #this) → (dynamic) → dynamic
+  return (dynamic x) → dynamic => self::EIntIntCallInt|call(#this, x);
+static method test<X1 extends (core::int), X2 extends (core::int, {required call: (dynamic) → dynamic}), X3 extends (core::int, core::int, {required call: (dynamic) → dynamic}), X4 extends (core::String)>((core::int) r1, (core::int, {required call: (dynamic) → dynamic}) r2, (core::int, core::int, {required call: (dynamic) → dynamic}) r3, (core::String) r4, self::test::X1 x1, self::test::X2 x2, self::test::X3 x3, self::test::X4 x4, self::test::X1? x1n, self::test::X2? x2n, self::test::X3? x3n, self::test::X4? x4n) → dynamic {
+  self::EInt|call(r1, 0);
+  r2.call{(dynamic) → dynamic}(0){(dynamic) → dynamic};
+  r3.call{(dynamic) → dynamic}(0){(dynamic) → dynamic};
+  invalid-expression "pkg/front_end/testcases/records/issue54616_2.dart:29:5: Error: The method 'call' isn't defined for the class '(String)'.
+Try correcting the name to the name of an existing method, or defining a method named 'call'.
+  r4(0); // Error.
+    ^" in r4{<unresolved>}.call(0);
+  self::EInt|call(r1, 0);
+  r2.call{(dynamic) → dynamic}(0){(dynamic) → dynamic};
+  r3.call{(dynamic) → dynamic}(0){(dynamic) → dynamic};
+  invalid-expression "pkg/front_end/testcases/records/issue54616_2.dart:33:6: Error: The method 'call' isn't defined for the class '(String)'.
+Try correcting the name to the name of an existing method, or defining a method named 'call'.
+  r4.call(0); // Error.
+     ^^^^" in r4{<unresolved>}.call(0);
+  self::EInt|call(x1, 0);
+  x2.call{(dynamic) → dynamic}(0){(dynamic) → dynamic};
+  x3.call{(dynamic) → dynamic}(0){(dynamic) → dynamic};
+  invalid-expression "pkg/front_end/testcases/records/issue54616_2.dart:38:5: Error: The method 'call' isn't defined for the class '(String)'.
+Try correcting the name to the name of an existing method, or defining a method named 'call'.
+  x4(0); // Error.
+    ^" in x4{<unresolved>}.call(0);
+  invalid-expression "pkg/front_end/testcases/records/issue54616_2.dart:39:6: Error: Can't use an expression of type 'X1?' as a function because it's potentially null.
+Try calling using ?.call instead.
+  x1n(0); // Error.
+     ^" in self::EInt|call(x1n, 0);
+  invalid-expression "pkg/front_end/testcases/records/issue54616_2.dart:40:6: Error: Can't use an expression of type 'X2?' as a function because it's potentially null.
+Try calling using ?.call instead.
+  x2n(0); // Error.
+     ^" in x2n.call{(dynamic) → dynamic}(0){(dynamic) → dynamic};
+  invalid-expression "pkg/front_end/testcases/records/issue54616_2.dart:41:6: Error: Can't use an expression of type 'X3?' as a function because it's potentially null.
+Try calling using ?.call instead.
+  x3n(0); // Error.
+     ^" in x3n.call{(dynamic) → dynamic}(0){(dynamic) → dynamic};
+  invalid-expression "pkg/front_end/testcases/records/issue54616_2.dart:42:6: Error: The method 'call' isn't defined for the class '(String)?'.
+Try correcting the name to the name of an existing method, or defining a method named 'call'.
+  x4n(0); // Error.
+     ^" in x4n{<unresolved>}.call(0);
+  self::EInt|call(x1, 0);
+  x2.call{(dynamic) → dynamic}(0){(dynamic) → dynamic};
+  x3.call{(dynamic) → dynamic}(0){(dynamic) → dynamic};
+  invalid-expression "pkg/front_end/testcases/records/issue54616_2.dart:47:6: Error: The method 'call' isn't defined for the class '(String)'.
+Try correcting the name to the name of an existing method, or defining a method named 'call'.
+  x4.call(0); // Error.
+     ^^^^" in x4{<unresolved>}.call(0);
+  invalid-expression "pkg/front_end/testcases/records/issue54616_2.dart:48:7: Error: Method 'call' cannot be called on 'X1?' because it is potentially null.
+Try calling using ?. instead.
+  x1n.call(0); // Error.
+      ^^^^" in self::EInt|call(x1n, 0);
+  invalid-expression "pkg/front_end/testcases/records/issue54616_2.dart:49:7: Error: Can't use an expression of type 'X2?' as a function because it's potentially null.
+Try calling using ?.call instead.
+  x2n.call(0); // Error.
+      ^" in x2n.call{(dynamic) → dynamic}(0){(dynamic) → dynamic};
+  invalid-expression "pkg/front_end/testcases/records/issue54616_2.dart:50:7: Error: Can't use an expression of type 'X3?' as a function because it's potentially null.
+Try calling using ?.call instead.
+  x3n.call(0); // Error.
+      ^" in x3n.call{(dynamic) → dynamic}(0){(dynamic) → dynamic};
+  invalid-expression "pkg/front_end/testcases/records/issue54616_2.dart:51:7: Error: The method 'call' isn't defined for the class '(String)?'.
+Try correcting the name to the name of an existing method, or defining a method named 'call'.
+  x4n.call(0); // Error.
+      ^^^^" in x4n{<unresolved>}.call(0);
+}

pkg/front_end/testcases/records/issue54616_2.dart.strong.transformed.expect

@@ -0,0 +1,161 @@
+library;
+//
+// Problems in library:
+//
+// pkg/front_end/testcases/records/issue54616_2.dart:27:3: Error: The 'call' property on the record type isn't directly callable but could be invoked by `.call(...)`
+//   r2(0); // Error.
+//   ^
+//
+// pkg/front_end/testcases/records/issue54616_2.dart:28:3: Error: The 'call' property on the record type isn't directly callable but could be invoked by `.call(...)`
+//   r3(0); // Error.
+//   ^
+//
+// pkg/front_end/testcases/records/issue54616_2.dart:29:5: Error: The method 'call' isn't defined for the class '(String)'.
+// Try correcting the name to the name of an existing method, or defining a method named 'call'.
+//   r4(0); // Error.
+//     ^
+//
+// pkg/front_end/testcases/records/issue54616_2.dart:33:6: Error: The method 'call' isn't defined for the class '(String)'.
+// Try correcting the name to the name of an existing method, or defining a method named 'call'.
+//   r4.call(0); // Error.
+//      ^^^^
+//
+// pkg/front_end/testcases/records/issue54616_2.dart:36:3: Error: The 'call' property on the record type isn't directly callable but could be invoked by `.call(...)`
+//   x2(0); // Error.
+//   ^
+//
+// pkg/front_end/testcases/records/issue54616_2.dart:37:3: Error: The 'call' property on the record type isn't directly callable but could be invoked by `.call(...)`
+//   x3(0); // Error.
+//   ^
+//
+// pkg/front_end/testcases/records/issue54616_2.dart:38:5: Error: The method 'call' isn't defined for the class '(String)'.
+// Try correcting the name to the name of an existing method, or defining a method named 'call'.
+//   x4(0); // Error.
+//     ^
+//
+// pkg/front_end/testcases/records/issue54616_2.dart:39:6: Error: Can't use an expression of type 'X1?' as a function because it's potentially null.
+// Try calling using ?.call instead.
+//   x1n(0); // Error.
+//      ^
+//
+// pkg/front_end/testcases/records/issue54616_2.dart:40:6: Error: Can't use an expression of type 'X2?' as a function because it's potentially null.
+// Try calling using ?.call instead.
+//   x2n(0); // Error.
+//      ^
+//
+// pkg/front_end/testcases/records/issue54616_2.dart:41:6: Error: Can't use an expression of type 'X3?' as a function because it's potentially null.
+// Try calling using ?.call instead.
+//   x3n(0); // Error.
+//      ^
+//
+// pkg/front_end/testcases/records/issue54616_2.dart:42:6: Error: The method 'call' isn't defined for the class '(String)?'.
+// Try correcting the name to the name of an existing method, or defining a method named 'call'.
+//   x4n(0); // Error.
+//      ^
+//
+// pkg/front_end/testcases/records/issue54616_2.dart:47:6: Error: The method 'call' isn't defined for the class '(String)'.
+// Try correcting the name to the name of an existing method, or defining a method named 'call'.
+//   x4.call(0); // Error.
+//      ^^^^
+//
+// pkg/front_end/testcases/records/issue54616_2.dart:48:7: Error: Method 'call' cannot be called on 'X1?' because it is potentially null.
+// Try calling using ?. instead.
+//   x1n.call(0); // Error.
+//       ^^^^
+//
+// pkg/front_end/testcases/records/issue54616_2.dart:49:7: Error: Can't use an expression of type 'X2?' as a function because it's potentially null.
+// Try calling using ?.call instead.
+//   x2n.call(0); // Error.
+//       ^
+//
+// pkg/front_end/testcases/records/issue54616_2.dart:50:7: Error: Can't use an expression of type 'X3?' as a function because it's potentially null.
+// Try calling using ?.call instead.
+//   x3n.call(0); // Error.
+//       ^
+//
+// pkg/front_end/testcases/records/issue54616_2.dart:51:7: Error: The method 'call' isn't defined for the class '(String)?'.
+// Try correcting the name to the name of an existing method, or defining a method named 'call'.
+//   x4n.call(0); // Error.
+//       ^^^^
+//
+import self as self;
+import "dart:core" as core;
+
+extension EInt on (core::int) {
+  method call = self::EInt|call;
+  method tearoff call = self::EInt|get#call;
+}
+extension EIntIntCallInt on (core::int, core::int, {required call: (dynamic) → dynamic}) {
+  method call = self::EIntIntCallInt|call;
+  method tearoff call = self::EIntIntCallInt|get#call;
+}
+static extension-member method EInt|call(lowered final(core::int) #this, dynamic x) → dynamic
+  return x;
+static extension-member method EInt|get#call(lowered final(core::int) #this) → (dynamic) → dynamic
+  return (dynamic x) → dynamic => self::EInt|call(#this, x);
+static extension-member method EIntIntCallInt|call(lowered final(core::int, core::int, {required call: (dynamic) → dynamic}) #this, dynamic x) → dynamic
+  return x;
+static extension-member method EIntIntCallInt|get#call(lowered final(core::int, core::int, {required call: (dynamic) → dynamic}) #this) → (dynamic) → dynamic
+  return (dynamic x) → dynamic => self::EIntIntCallInt|call(#this, x);
+static method test<X1 extends (core::int), X2 extends (core::int, {required call: (dynamic) → dynamic}), X3 extends (core::int, core::int, {required call: (dynamic) → dynamic}), X4 extends (core::String)>((core::int) r1, (core::int, {required call: (dynamic) → dynamic}) r2, (core::int, core::int, {required call: (dynamic) → dynamic}) r3, (core::String) r4, self::test::X1 x1, self::test::X2 x2, self::test::X3 x3, self::test::X4 x4, self::test::X1? x1n, self::test::X2? x2n, self::test::X3? x3n, self::test::X4? x4n) → dynamic {
+  self::EInt|call(r1, 0);
+  r2.call{(dynamic) → dynamic}(0){(dynamic) → dynamic};
+  r3.call{(dynamic) → dynamic}(0){(dynamic) → dynamic};
+  invalid-expression "pkg/front_end/testcases/records/issue54616_2.dart:29:5: Error: The method 'call' isn't defined for the class '(String)'.
+Try correcting the name to the name of an existing method, or defining a method named 'call'.
+  r4(0); // Error.
+    ^" in r4{<unresolved>}.call(0);
+  self::EInt|call(r1, 0);
+  r2.call{(dynamic) → dynamic}(0){(dynamic) → dynamic};
+  r3.call{(dynamic) → dynamic}(0){(dynamic) → dynamic};
+  invalid-expression "pkg/front_end/testcases/records/issue54616_2.dart:33:6: Error: The method 'call' isn't defined for the class '(String)'.
+Try correcting the name to the name of an existing method, or defining a method named 'call'.
+  r4.call(0); // Error.
+     ^^^^" in r4{<unresolved>}.call(0);
+  self::EInt|call(x1, 0);
+  x2.call{(dynamic) → dynamic}(0){(dynamic) → dynamic};
+  x3.call{(dynamic) → dynamic}(0){(dynamic) → dynamic};
+  invalid-expression "pkg/front_end/testcases/records/issue54616_2.dart:38:5: Error: The method 'call' isn't defined for the class '(String)'.
+Try correcting the name to the name of an existing method, or defining a method named 'call'.
+  x4(0); // Error.
+    ^" in x4{<unresolved>}.call(0);
+  invalid-expression "pkg/front_end/testcases/records/issue54616_2.dart:39:6: Error: Can't use an expression of type 'X1?' as a function because it's potentially null.
+Try calling using ?.call instead.
+  x1n(0); // Error.
+     ^" in self::EInt|call(x1n, 0);
+  invalid-expression "pkg/front_end/testcases/records/issue54616_2.dart:40:6: Error: Can't use an expression of type 'X2?' as a function because it's potentially null.
+Try calling using ?.call instead.
+  x2n(0); // Error.
+     ^" in x2n.call{(dynamic) → dynamic}(0){(dynamic) → dynamic};
+  invalid-expression "pkg/front_end/testcases/records/issue54616_2.dart:41:6: Error: Can't use an expression of type 'X3?' as a function because it's potentially null.
+Try calling using ?.call instead.
+  x3n(0); // Error.
+     ^" in x3n.call{(dynamic) → dynamic}(0){(dynamic) → dynamic};
+  invalid-expression "pkg/front_end/testcases/records/issue54616_2.dart:42:6: Error: The method 'call' isn't defined for the class '(String)?'.
+Try correcting the name to the name of an existing method, or defining a method named 'call'.
+  x4n(0); // Error.
+     ^" in x4n{<unresolved>}.call(0);
+  self::EInt|call(x1, 0);
+  x2.call{(dynamic) → dynamic}(0){(dynamic) → dynamic};
+  x3.call{(dynamic) → dynamic}(0){(dynamic) → dynamic};
+  invalid-expression "pkg/front_end/testcases/records/issue54616_2.dart:47:6: Error: The method 'call' isn't defined for the class '(String)'.
+Try correcting the name to the name of an existing method, or defining a method named 'call'.
+  x4.call(0); // Error.
+     ^^^^" in x4{<unresolved>}.call(0);
+  invalid-expression "pkg/front_end/testcases/records/issue54616_2.dart:48:7: Error: Method 'call' cannot be called on 'X1?' because it is potentially null.
+Try calling using ?. instead.
+  x1n.call(0); // Error.
+      ^^^^" in self::EInt|call(x1n, 0);
+  invalid-expression "pkg/front_end/testcases/records/issue54616_2.dart:49:7: Error: Can't use an expression of type 'X2?' as a function because it's potentially null.
+Try calling using ?.call instead.
+  x2n.call(0); // Error.
+      ^" in x2n.call{(dynamic) → dynamic}(0){(dynamic) → dynamic};
+  invalid-expression "pkg/front_end/testcases/records/issue54616_2.dart:50:7: Error: Can't use an expression of type 'X3?' as a function because it's potentially null.
+Try calling using ?.call instead.
+  x3n.call(0); // Error.
+      ^" in x3n.call{(dynamic) → dynamic}(0){(dynamic) → dynamic};
+  invalid-expression "pkg/front_end/testcases/records/issue54616_2.dart:51:7: Error: The method 'call' isn't defined for the class '(String)?'.
+Try correcting the name to the name of an existing method, or defining a method named 'call'.
+  x4n.call(0); // Error.
+      ^^^^" in x4n{<unresolved>}.call(0);
+}

pkg/front_end/testcases/records/issue54616_2.dart.textual_outline.expect

@@ -0,0 +1,25 @@
+extension EInt on (int,) {
+  dynamic call(dynamic x) => x;
+}
+
+extension EIntIntCallInt on (int, int, {dynamic Function(dynamic) call}) {
+  dynamic call(dynamic x) => x;
+}
+
+test<
+        X1 extends (int,),
+        X2 extends (int, {dynamic Function(dynamic) call}),
+        X3 extends (int, int, {dynamic Function(dynamic) call}),
+        X4 extends (String,)>(
+    (int,) r1,
+    (int, {dynamic Function(dynamic) call}) r2,
+    (int, int, {dynamic Function(dynamic) call}) r3,
+    (String,) r4,
+    X1 x1,
+    X2 x2,
+    X3 x3,
+    X4 x4,
+    X1? x1n,
+    X2? x2n,
+    X3? x3n,
+    X4? x4n) {}

pkg/front_end/testcases/records/issue54616_2.dart.textual_outline_modelled.expect

@@ -0,0 +1,25 @@
+extension EInt on (int,) {
+  dynamic call(dynamic x) => x;
+}
+
+extension EIntIntCallInt on (int, int, {dynamic Function(dynamic) call}) {
+  dynamic call(dynamic x) => x;
+}
+
+test<
+        X1 extends (int,),
+        X2 extends (int, {dynamic Function(dynamic) call}),
+        X3 extends (int, int, {dynamic Function(dynamic) call}),
+        X4 extends (String,)>(
+    (int,) r1,
+    (int, {dynamic Function(dynamic) call}) r2,
+    (int, int, {dynamic Function(dynamic) call}) r3,
+    (String,) r4,
+    X1 x1,
+    X2 x2,
+    X3 x3,
+    X4 x4,
+    X1? x1n,
+    X2? x2n,
+    X3? x3n,
+    X4? x4n) {}

pkg/front_end/testcases/records/issue54616_2.dart.weak.expect

@@ -0,0 +1,161 @@
+library;
+//
+// Problems in library:
+//
+// pkg/front_end/testcases/records/issue54616_2.dart:27:3: Error: The 'call' property on the record type isn't directly callable but could be invoked by `.call(...)`
+//   r2(0); // Error.
+//   ^
+//
+// pkg/front_end/testcases/records/issue54616_2.dart:28:3: Error: The 'call' property on the record type isn't directly callable but could be invoked by `.call(...)`
+//   r3(0); // Error.
+//   ^
+//
+// pkg/front_end/testcases/records/issue54616_2.dart:29:5: Error: The method 'call' isn't defined for the class '(String)'.
+// Try correcting the name to the name of an existing method, or defining a method named 'call'.
+//   r4(0); // Error.
+//     ^
+//
+// pkg/front_end/testcases/records/issue54616_2.dart:33:6: Error: The method 'call' isn't defined for the class '(String)'.
+// Try correcting the name to the name of an existing method, or defining a method named 'call'.
+//   r4.call(0); // Error.
+//      ^^^^
+//
+// pkg/front_end/testcases/records/issue54616_2.dart:36:3: Error: The 'call' property on the record type isn't directly callable but could be invoked by `.call(...)`
+//   x2(0); // Error.
+//   ^
+//
+// pkg/front_end/testcases/records/issue54616_2.dart:37:3: Error: The 'call' property on the record type isn't directly callable but could be invoked by `.call(...)`
+//   x3(0); // Error.
+//   ^
+//
+// pkg/front_end/testcases/records/issue54616_2.dart:38:5: Error: The method 'call' isn't defined for the class '(String)'.
+// Try correcting the name to the name of an existing method, or defining a method named 'call'.
+//   x4(0); // Error.
+//     ^
+//
+// pkg/front_end/testcases/records/issue54616_2.dart:39:6: Error: Can't use an expression of type 'X1?' as a function because it's potentially null.
+// Try calling using ?.call instead.
+//   x1n(0); // Error.
+//      ^
+//
+// pkg/front_end/testcases/records/issue54616_2.dart:40:6: Error: Can't use an expression of type 'X2?' as a function because it's potentially null.
+// Try calling using ?.call instead.
+//   x2n(0); // Error.
+//      ^
+//
+// pkg/front_end/testcases/records/issue54616_2.dart:41:6: Error: Can't use an expression of type 'X3?' as a function because it's potentially null.
+// Try calling using ?.call instead.
+//   x3n(0); // Error.
+//      ^
+//
+// pkg/front_end/testcases/records/issue54616_2.dart:42:6: Error: The method 'call' isn't defined for the class '(String)?'.
+// Try correcting the name to the name of an existing method, or defining a method named 'call'.
+//   x4n(0); // Error.
+//      ^
+//
+// pkg/front_end/testcases/records/issue54616_2.dart:47:6: Error: The method 'call' isn't defined for the class '(String)'.
+// Try correcting the name to the name of an existing method, or defining a method named 'call'.
+//   x4.call(0); // Error.
+//      ^^^^
+//
+// pkg/front_end/testcases/records/issue54616_2.dart:48:7: Error: Method 'call' cannot be called on 'X1?' because it is potentially null.
+// Try calling using ?. instead.
+//   x1n.call(0); // Error.
+//       ^^^^
+//
+// pkg/front_end/testcases/records/issue54616_2.dart:49:7: Error: Can't use an expression of type 'X2?' as a function because it's potentially null.
+// Try calling using ?.call instead.
+//   x2n.call(0); // Error.
+//       ^
+//
+// pkg/front_end/testcases/records/issue54616_2.dart:50:7: Error: Can't use an expression of type 'X3?' as a function because it's potentially null.
+// Try calling using ?.call instead.
+//   x3n.call(0); // Error.
+//       ^
+//
+// pkg/front_end/testcases/records/issue54616_2.dart:51:7: Error: The method 'call' isn't defined for the class '(String)?'.
+// Try correcting the name to the name of an existing method, or defining a method named 'call'.
+//   x4n.call(0); // Error.
+//       ^^^^
+//
+import self as self;
+import "dart:core" as core;
+
+extension EInt on (core::int) {
+  method call = self::EInt|call;
+  method tearoff call = self::EInt|get#call;
+}
+extension EIntIntCallInt on (core::int, core::int, {required call: (dynamic) → dynamic}) {
+  method call = self::EIntIntCallInt|call;
+  method tearoff call = self::EIntIntCallInt|get#call;
+}
+static extension-member method EInt|call(lowered final(core::int) #this, dynamic x) → dynamic
+  return x;
+static extension-member method EInt|get#call(lowered final(core::int) #this) → (dynamic) → dynamic
+  return (dynamic x) → dynamic => self::EInt|call(#this, x);
+static extension-member method EIntIntCallInt|call(lowered final(core::int, core::int, {required call: (dynamic) → dynamic}) #this, dynamic x) → dynamic
+  return x;
+static extension-member method EIntIntCallInt|get#call(lowered final(core::int, core::int, {required call: (dynamic) → dynamic}) #this) → (dynamic) → dynamic
+  return (dynamic x) → dynamic => self::EIntIntCallInt|call(#this, x);
+static method test<X1 extends (core::int), X2 extends (core::int, {required call: (dynamic) → dynamic}), X3 extends (core::int, core::int, {required call: (dynamic) → dynamic}), X4 extends (core::String)>((core::int) r1, (core::int, {required call: (dynamic) → dynamic}) r2, (core::int, core::int, {required call: (dynamic) → dynamic}) r3, (core::String) r4, self::test::X1 x1, self::test::X2 x2, self::test::X3 x3, self::test::X4 x4, self::test::X1? x1n, self::test::X2? x2n, self::test::X3? x3n, self::test::X4? x4n) → dynamic {
+  self::EInt|call(r1, 0);
+  r2.call{(dynamic) → dynamic}(0){(dynamic) → dynamic};
+  r3.call{(dynamic) → dynamic}(0){(dynamic) → dynamic};
+  invalid-expression "pkg/front_end/testcases/records/issue54616_2.dart:29:5: Error: The method 'call' isn't defined for the class '(String)'.
+Try correcting the name to the name of an existing method, or defining a method named 'call'.
+  r4(0); // Error.
+    ^" in r4{<unresolved>}.call(0);
+  self::EInt|call(r1, 0);
+  r2.call{(dynamic) → dynamic}(0){(dynamic) → dynamic};
+  r3.call{(dynamic) → dynamic}(0){(dynamic) → dynamic};
+  invalid-expression "pkg/front_end/testcases/records/issue54616_2.dart:33:6: Error: The method 'call' isn't defined for the class '(String)'.
+Try correcting the name to the name of an existing method, or defining a method named 'call'.
+  r4.call(0); // Error.
+     ^^^^" in r4{<unresolved>}.call(0);
+  self::EInt|call(x1, 0);
+  x2.call{(dynamic) → dynamic}(0){(dynamic) → dynamic};
+  x3.call{(dynamic) → dynamic}(0){(dynamic) → dynamic};
+  invalid-expression "pkg/front_end/testcases/records/issue54616_2.dart:38:5: Error: The method 'call' isn't defined for the class '(String)'.
+Try correcting the name to the name of an existing method, or defining a method named 'call'.
+  x4(0); // Error.
+    ^" in x4{<unresolved>}.call(0);
+  invalid-expression "pkg/front_end/testcases/records/issue54616_2.dart:39:6: Error: Can't use an expression of type 'X1?' as a function because it's potentially null.
+Try calling using ?.call instead.
+  x1n(0); // Error.
+     ^" in self::EInt|call(x1n, 0);
+  invalid-expression "pkg/front_end/testcases/records/issue54616_2.dart:40:6: Error: Can't use an expression of type 'X2?' as a function because it's potentially null.
+Try calling using ?.call instead.
+  x2n(0); // Error.
+     ^" in x2n.call{(dynamic) → dynamic}(0){(dynamic) → dynamic};
+  invalid-expression "pkg/front_end/testcases/records/issue54616_2.dart:41:6: Error: Can't use an expression of type 'X3?' as a function because it's potentially null.
+Try calling using ?.call instead.
+  x3n(0); // Error.
+     ^" in x3n.call{(dynamic) → dynamic}(0){(dynamic) → dynamic};
+  invalid-expression "pkg/front_end/testcases/records/issue54616_2.dart:42:6: Error: The method 'call' isn't defined for the class '(String)?'.
+Try correcting the name to the name of an existing method, or defining a method named 'call'.
+  x4n(0); // Error.
+     ^" in x4n{<unresolved>}.call(0);
+  self::EInt|call(x1, 0);
+  x2.call{(dynamic) → dynamic}(0){(dynamic) → dynamic};
+  x3.call{(dynamic) → dynamic}(0){(dynamic) → dynamic};
+  invalid-expression "pkg/front_end/testcases/records/issue54616_2.dart:47:6: Error: The method 'call' isn't defined for the class '(String)'.
+Try correcting the name to the name of an existing method, or defining a method named 'call'.
+  x4.call(0); // Error.
+     ^^^^" in x4{<unresolved>}.call(0);
+  invalid-expression "pkg/front_end/testcases/records/issue54616_2.dart:48:7: Error: Method 'call' cannot be called on 'X1?' because it is potentially null.
+Try calling using ?. instead.
+  x1n.call(0); // Error.
+      ^^^^" in self::EInt|call(x1n, 0);
+  invalid-expression "pkg/front_end/testcases/records/issue54616_2.dart:49:7: Error: Can't use an expression of type 'X2?' as a function because it's potentially null.
+Try calling using ?.call instead.
+  x2n.call(0); // Error.
+      ^" in x2n.call{(dynamic) → dynamic}(0){(dynamic) → dynamic};
+  invalid-expression "pkg/front_end/testcases/records/issue54616_2.dart:50:7: Error: Can't use an expression of type 'X3?' as a function because it's potentially null.
+Try calling using ?.call instead.
+  x3n.call(0); // Error.
+      ^" in x3n.call{(dynamic) → dynamic}(0){(dynamic) → dynamic};
+  invalid-expression "pkg/front_end/testcases/records/issue54616_2.dart:51:7: Error: The method 'call' isn't defined for the class '(String)?'.
+Try correcting the name to the name of an existing method, or defining a method named 'call'.
+  x4n.call(0); // Error.
+      ^^^^" in x4n{<unresolved>}.call(0);
+}

pkg/front_end/testcases/records/issue54616_2.dart.weak.modular.expect

@@ -0,0 +1,161 @@
+library;
+//
+// Problems in library:
+//
+// pkg/front_end/testcases/records/issue54616_2.dart:27:3: Error: The 'call' property on the record type isn't directly callable but could be invoked by `.call(...)`
+//   r2(0); // Error.
+//   ^
+//
+// pkg/front_end/testcases/records/issue54616_2.dart:28:3: Error: The 'call' property on the record type isn't directly callable but could be invoked by `.call(...)`
+//   r3(0); // Error.
+//   ^
+//
+// pkg/front_end/testcases/records/issue54616_2.dart:29:5: Error: The method 'call' isn't defined for the class '(String)'.
+// Try correcting the name to the name of an existing method, or defining a method named 'call'.
+//   r4(0); // Error.
+//     ^
+//
+// pkg/front_end/testcases/records/issue54616_2.dart:33:6: Error: The method 'call' isn't defined for the class '(String)'.
+// Try correcting the name to the name of an existing method, or defining a method named 'call'.
+//   r4.call(0); // Error.
+//      ^^^^
+//
+// pkg/front_end/testcases/records/issue54616_2.dart:36:3: Error: The 'call' property on the record type isn't directly callable but could be invoked by `.call(...)`
+//   x2(0); // Error.
+//   ^
+//
+// pkg/front_end/testcases/records/issue54616_2.dart:37:3: Error: The 'call' property on the record type isn't directly callable but could be invoked by `.call(...)`
+//   x3(0); // Error.
+//   ^
+//
+// pkg/front_end/testcases/records/issue54616_2.dart:38:5: Error: The method 'call' isn't defined for the class '(String)'.
+// Try correcting the name to the name of an existing method, or defining a method named 'call'.
+//   x4(0); // Error.
+//     ^
+//
+// pkg/front_end/testcases/records/issue54616_2.dart:39:6: Error: Can't use an expression of type 'X1?' as a function because it's potentially null.
+// Try calling using ?.call instead.
+//   x1n(0); // Error.
+//      ^
+//
+// pkg/front_end/testcases/records/issue54616_2.dart:40:6: Error: Can't use an expression of type 'X2?' as a function because it's potentially null.
+// Try calling using ?.call instead.
+//   x2n(0); // Error.
+//      ^
+//
+// pkg/front_end/testcases/records/issue54616_2.dart:41:6: Error: Can't use an expression of type 'X3?' as a function because it's potentially null.
+// Try calling using ?.call instead.
+//   x3n(0); // Error.
+//      ^
+//
+// pkg/front_end/testcases/records/issue54616_2.dart:42:6: Error: The method 'call' isn't defined for the class '(String)?'.
+// Try correcting the name to the name of an existing method, or defining a method named 'call'.
+//   x4n(0); // Error.
+//      ^
+//
+// pkg/front_end/testcases/records/issue54616_2.dart:47:6: Error: The method 'call' isn't defined for the class '(String)'.
+// Try correcting the name to the name of an existing method, or defining a method named 'call'.
+//   x4.call(0); // Error.
+//      ^^^^
+//
+// pkg/front_end/testcases/records/issue54616_2.dart:48:7: Error: Method 'call' cannot be called on 'X1?' because it is potentially null.
+// Try calling using ?. instead.
+//   x1n.call(0); // Error.
+//       ^^^^
+//
+// pkg/front_end/testcases/records/issue54616_2.dart:49:7: Error: Can't use an expression of type 'X2?' as a function because it's potentially null.
+// Try calling using ?.call instead.
+//   x2n.call(0); // Error.
+//       ^
+//
+// pkg/front_end/testcases/records/issue54616_2.dart:50:7: Error: Can't use an expression of type 'X3?' as a function because it's potentially null.
+// Try calling using ?.call instead.
+//   x3n.call(0); // Error.
+//       ^
+//
+// pkg/front_end/testcases/records/issue54616_2.dart:51:7: Error: The method 'call' isn't defined for the class '(String)?'.
+// Try correcting the name to the name of an existing method, or defining a method named 'call'.
+//   x4n.call(0); // Error.
+//       ^^^^
+//
+import self as self;
+import "dart:core" as core;
+
+extension EInt on (core::int) {
+  method call = self::EInt|call;
+  method tearoff call = self::EInt|get#call;
+}
+extension EIntIntCallInt on (core::int, core::int, {required call: (dynamic) → dynamic}) {
+  method call = self::EIntIntCallInt|call;
+  method tearoff call = self::EIntIntCallInt|get#call;
+}
+static extension-member method EInt|call(lowered final(core::int) #this, dynamic x) → dynamic
+  return x;
+static extension-member method EInt|get#call(lowered final(core::int) #this) → (dynamic) → dynamic
+  return (dynamic x) → dynamic => self::EInt|call(#this, x);
+static extension-member method EIntIntCallInt|call(lowered final(core::int, core::int, {required call: (dynamic) → dynamic}) #this, dynamic x) → dynamic
+  return x;
+static extension-member method EIntIntCallInt|get#call(lowered final(core::int, core::int, {required call: (dynamic) → dynamic}) #this) → (dynamic) → dynamic
+  return (dynamic x) → dynamic => self::EIntIntCallInt|call(#this, x);
+static method test<X1 extends (core::int), X2 extends (core::int, {required call: (dynamic) → dynamic}), X3 extends (core::int, core::int, {required call: (dynamic) → dynamic}), X4 extends (core::String)>((core::int) r1, (core::int, {required call: (dynamic) → dynamic}) r2, (core::int, core::int, {required call: (dynamic) → dynamic}) r3, (core::String) r4, self::test::X1 x1, self::test::X2 x2, self::test::X3 x3, self::test::X4 x4, self::test::X1? x1n, self::test::X2? x2n, self::test::X3? x3n, self::test::X4? x4n) → dynamic {
+  self::EInt|call(r1, 0);
+  r2.call{(dynamic) → dynamic}(0){(dynamic) → dynamic};
+  r3.call{(dynamic) → dynamic}(0){(dynamic) → dynamic};
+  invalid-expression "pkg/front_end/testcases/records/issue54616_2.dart:29:5: Error: The method 'call' isn't defined for the class '(String)'.
+Try correcting the name to the name of an existing method, or defining a method named 'call'.
+  r4(0); // Error.
+    ^" in r4{<unresolved>}.call(0);
+  self::EInt|call(r1, 0);
+  r2.call{(dynamic) → dynamic}(0){(dynamic) → dynamic};
+  r3.call{(dynamic) → dynamic}(0){(dynamic) → dynamic};
+  invalid-expression "pkg/front_end/testcases/records/issue54616_2.dart:33:6: Error: The method 'call' isn't defined for the class '(String)'.
+Try correcting the name to the name of an existing method, or defining a method named 'call'.
+  r4.call(0); // Error.
+     ^^^^" in r4{<unresolved>}.call(0);
+  self::EInt|call(x1, 0);
+  x2.call{(dynamic) → dynamic}(0){(dynamic) → dynamic};
+  x3.call{(dynamic) → dynamic}(0){(dynamic) → dynamic};
+  invalid-expression "pkg/front_end/testcases/records/issue54616_2.dart:38:5: Error: The method 'call' isn't defined for the class '(String)'.
+Try correcting the name to the name of an existing method, or defining a method named 'call'.
+  x4(0); // Error.
+    ^" in x4{<unresolved>}.call(0);
+  invalid-expression "pkg/front_end/testcases/records/issue54616_2.dart:39:6: Error: Can't use an expression of type 'X1?' as a function because it's potentially null.
+Try calling using ?.call instead.
+  x1n(0); // Error.
+     ^" in self::EInt|call(x1n, 0);
+  invalid-expression "pkg/front_end/testcases/records/issue54616_2.dart:40:6: Error: Can't use an expression of type 'X2?' as a function because it's potentially null.
+Try calling using ?.call instead.
+  x2n(0); // Error.
+     ^" in x2n.call{(dynamic) → dynamic}(0){(dynamic) → dynamic};
+  invalid-expression "pkg/front_end/testcases/records/issue54616_2.dart:41:6: Error: Can't use an expression of type 'X3?' as a function because it's potentially null.
+Try calling using ?.call instead.
+  x3n(0); // Error.
+     ^" in x3n.call{(dynamic) → dynamic}(0){(dynamic) → dynamic};
+  invalid-expression "pkg/front_end/testcases/records/issue54616_2.dart:42:6: Error: The method 'call' isn't defined for the class '(String)?'.
+Try correcting the name to the name of an existing method, or defining a method named 'call'.
+  x4n(0); // Error.
+     ^" in x4n{<unresolved>}.call(0);
+  self::EInt|call(x1, 0);
+  x2.call{(dynamic) → dynamic}(0){(dynamic) → dynamic};
+  x3.call{(dynamic) → dynamic}(0){(dynamic) → dynamic};
+  invalid-expression "pkg/front_end/testcases/records/issue54616_2.dart:47:6: Error: The method 'call' isn't defined for the class '(String)'.
+Try correcting the name to the name of an existing method, or defining a method named 'call'.
+  x4.call(0); // Error.
+     ^^^^" in x4{<unresolved>}.call(0);
+  invalid-expression "pkg/front_end/testcases/records/issue54616_2.dart:48:7: Error: Method 'call' cannot be called on 'X1?' because it is potentially null.
+Try calling using ?. instead.
+  x1n.call(0); // Error.
+      ^^^^" in self::EInt|call(x1n, 0);
+  invalid-expression "pkg/front_end/testcases/records/issue54616_2.dart:49:7: Error: Can't use an expression of type 'X2?' as a function because it's potentially null.
+Try calling using ?.call instead.
+  x2n.call(0); // Error.
+      ^" in x2n.call{(dynamic) → dynamic}(0){(dynamic) → dynamic};
+  invalid-expression "pkg/front_end/testcases/records/issue54616_2.dart:50:7: Error: Can't use an expression of type 'X3?' as a function because it's potentially null.
+Try calling using ?.call instead.
+  x3n.call(0); // Error.
+      ^" in x3n.call{(dynamic) → dynamic}(0){(dynamic) → dynamic};
+  invalid-expression "pkg/front_end/testcases/records/issue54616_2.dart:51:7: Error: The method 'call' isn't defined for the class '(String)?'.
+Try correcting the name to the name of an existing method, or defining a method named 'call'.
+  x4n.call(0); // Error.
+      ^^^^" in x4n{<unresolved>}.call(0);
+}

pkg/front_end/testcases/records/issue54616_2.dart.weak.outline.expect

@@ -0,0 +1,22 @@
+library;
+import self as self;
+import "dart:core" as core;
+
+extension EInt on (core::int) {
+  method call = self::EInt|call;
+  method tearoff call = self::EInt|get#call;
+}
+extension EIntIntCallInt on (core::int, core::int, {required call: (dynamic) → dynamic}) {
+  method call = self::EIntIntCallInt|call;
+  method tearoff call = self::EIntIntCallInt|get#call;
+}
+static extension-member method EInt|call(lowered final(core::int) #this, dynamic x) → dynamic
+  ;
+static extension-member method EInt|get#call(lowered final(core::int) #this) → (dynamic) → dynamic
+  return (dynamic x) → dynamic => self::EInt|call(#this, x);
+static extension-member method EIntIntCallInt|call(lowered final(core::int, core::int, {required call: (dynamic) → dynamic}) #this, dynamic x) → dynamic
+  ;
+static extension-member method EIntIntCallInt|get#call(lowered final(core::int, core::int, {required call: (dynamic) → dynamic}) #this) → (dynamic) → dynamic
+  return (dynamic x) → dynamic => self::EIntIntCallInt|call(#this, x);
+static method test<X1 extends (core::int), X2 extends (core::int, {required call: (dynamic) → dynamic}), X3 extends (core::int, core::int, {required call: (dynamic) → dynamic}), X4 extends (core::String)>((core::int) r1, (core::int, {required call: (dynamic) → dynamic}) r2, (core::int, core::int, {required call: (dynamic) → dynamic}) r3, (core::String) r4, self::test::X1 x1, self::test::X2 x2, self::test::X3 x3, self::test::X4 x4, self::test::X1? x1n, self::test::X2? x2n, self::test::X3? x3n, self::test::X4? x4n) → dynamic
+  ;

pkg/front_end/testcases/records/issue54616_2.dart.weak.transformed.expect

@@ -0,0 +1,161 @@
+library;
+//
+// Problems in library:
+//
+// pkg/front_end/testcases/records/issue54616_2.dart:27:3: Error: The 'call' property on the record type isn't directly callable but could be invoked by `.call(...)`
+//   r2(0); // Error.
+//   ^
+//
+// pkg/front_end/testcases/records/issue54616_2.dart:28:3: Error: The 'call' property on the record type isn't directly callable but could be invoked by `.call(...)`
+//   r3(0); // Error.
+//   ^
+//
+// pkg/front_end/testcases/records/issue54616_2.dart:29:5: Error: The method 'call' isn't defined for the class '(String)'.
+// Try correcting the name to the name of an existing method, or defining a method named 'call'.
+//   r4(0); // Error.
+//     ^
+//
+// pkg/front_end/testcases/records/issue54616_2.dart:33:6: Error: The method 'call' isn't defined for the class '(String)'.
+// Try correcting the name to the name of an existing method, or defining a method named 'call'.
+//   r4.call(0); // Error.
+//      ^^^^
+//
+// pkg/front_end/testcases/records/issue54616_2.dart:36:3: Error: The 'call' property on the record type isn't directly callable but could be invoked by `.call(...)`
+//   x2(0); // Error.
+//   ^
+//
+// pkg/front_end/testcases/records/issue54616_2.dart:37:3: Error: The 'call' property on the record type isn't directly callable but could be invoked by `.call(...)`
+//   x3(0); // Error.
+//   ^
+//
+// pkg/front_end/testcases/records/issue54616_2.dart:38:5: Error: The method 'call' isn't defined for the class '(String)'.
+// Try correcting the name to the name of an existing method, or defining a method named 'call'.
+//   x4(0); // Error.
+//     ^
+//
+// pkg/front_end/testcases/records/issue54616_2.dart:39:6: Error: Can't use an expression of type 'X1?' as a function because it's potentially null.
+// Try calling using ?.call instead.
+//   x1n(0); // Error.
+//      ^
+//
+// pkg/front_end/testcases/records/issue54616_2.dart:40:6: Error: Can't use an expression of type 'X2?' as a function because it's potentially null.
+// Try calling using ?.call instead.
+//   x2n(0); // Error.
+//      ^
+//
+// pkg/front_end/testcases/records/issue54616_2.dart:41:6: Error: Can't use an expression of type 'X3?' as a function because it's potentially null.
+// Try calling using ?.call instead.
+//   x3n(0); // Error.
+//      ^
+//
+// pkg/front_end/testcases/records/issue54616_2.dart:42:6: Error: The method 'call' isn't defined for the class '(String)?'.
+// Try correcting the name to the name of an existing method, or defining a method named 'call'.
+//   x4n(0); // Error.
+//      ^
+//
+// pkg/front_end/testcases/records/issue54616_2.dart:47:6: Error: The method 'call' isn't defined for the class '(String)'.
+// Try correcting the name to the name of an existing method, or defining a method named 'call'.
+//   x4.call(0); // Error.
+//      ^^^^
+//
+// pkg/front_end/testcases/records/issue54616_2.dart:48:7: Error: Method 'call' cannot be called on 'X1?' because it is potentially null.
+// Try calling using ?. instead.
+//   x1n.call(0); // Error.
+//       ^^^^
+//
+// pkg/front_end/testcases/records/issue54616_2.dart:49:7: Error: Can't use an expression of type 'X2?' as a function because it's potentially null.
+// Try calling using ?.call instead.
+//   x2n.call(0); // Error.
+//       ^
+//
+// pkg/front_end/testcases/records/issue54616_2.dart:50:7: Error: Can't use an expression of type 'X3?' as a function because it's potentially null.
+// Try calling using ?.call instead.
+//   x3n.call(0); // Error.
+//       ^
+//
+// pkg/front_end/testcases/records/issue54616_2.dart:51:7: Error: The method 'call' isn't defined for the class '(String)?'.
+// Try correcting the name to the name of an existing method, or defining a method named 'call'.
+//   x4n.call(0); // Error.
+//       ^^^^
+//
+import self as self;
+import "dart:core" as core;
+
+extension EInt on (core::int) {
+  method call = self::EInt|call;
+  method tearoff call = self::EInt|get#call;
+}
+extension EIntIntCallInt on (core::int, core::int, {required call: (dynamic) → dynamic}) {
+  method call = self::EIntIntCallInt|call;
+  method tearoff call = self::EIntIntCallInt|get#call;
+}
+static extension-member method EInt|call(lowered final(core::int) #this, dynamic x) → dynamic
+  return x;
+static extension-member method EInt|get#call(lowered final(core::int) #this) → (dynamic) → dynamic
+  return (dynamic x) → dynamic => self::EInt|call(#this, x);
+static extension-member method EIntIntCallInt|call(lowered final(core::int, core::int, {required call: (dynamic) → dynamic}) #this, dynamic x) → dynamic
+  return x;
+static extension-member method EIntIntCallInt|get#call(lowered final(core::int, core::int, {required call: (dynamic) → dynamic}) #this) → (dynamic) → dynamic
+  return (dynamic x) → dynamic => self::EIntIntCallInt|call(#this, x);
+static method test<X1 extends (core::int), X2 extends (core::int, {required call: (dynamic) → dynamic}), X3 extends (core::int, core::int, {required call: (dynamic) → dynamic}), X4 extends (core::String)>((core::int) r1, (core::int, {required call: (dynamic) → dynamic}) r2, (core::int, core::int, {required call: (dynamic) → dynamic}) r3, (core::String) r4, self::test::X1 x1, self::test::X2 x2, self::test::X3 x3, self::test::X4 x4, self::test::X1? x1n, self::test::X2? x2n, self::test::X3? x3n, self::test::X4? x4n) → dynamic {
+  self::EInt|call(r1, 0);
+  r2.call{(dynamic) → dynamic}(0){(dynamic) → dynamic};
+  r3.call{(dynamic) → dynamic}(0){(dynamic) → dynamic};
+  invalid-expression "pkg/front_end/testcases/records/issue54616_2.dart:29:5: Error: The method 'call' isn't defined for the class '(String)'.
+Try correcting the name to the name of an existing method, or defining a method named 'call'.
+  r4(0); // Error.
+    ^" in r4{<unresolved>}.call(0);
+  self::EInt|call(r1, 0);
+  r2.call{(dynamic) → dynamic}(0){(dynamic) → dynamic};
+  r3.call{(dynamic) → dynamic}(0){(dynamic) → dynamic};
+  invalid-expression "pkg/front_end/testcases/records/issue54616_2.dart:33:6: Error: The method 'call' isn't defined for the class '(String)'.
+Try correcting the name to the name of an existing method, or defining a method named 'call'.
+  r4.call(0); // Error.
+     ^^^^" in r4{<unresolved>}.call(0);
+  self::EInt|call(x1, 0);
+  x2.call{(dynamic) → dynamic}(0){(dynamic) → dynamic};
+  x3.call{(dynamic) → dynamic}(0){(dynamic) → dynamic};
+  invalid-expression "pkg/front_end/testcases/records/issue54616_2.dart:38:5: Error: The method 'call' isn't defined for the class '(String)'.
+Try correcting the name to the name of an existing method, or defining a method named 'call'.
+  x4(0); // Error.
+    ^" in x4{<unresolved>}.call(0);
+  invalid-expression "pkg/front_end/testcases/records/issue54616_2.dart:39:6: Error: Can't use an expression of type 'X1?' as a function because it's potentially null.
+Try calling using ?.call instead.
+  x1n(0); // Error.
+     ^" in self::EInt|call(x1n, 0);
+  invalid-expression "pkg/front_end/testcases/records/issue54616_2.dart:40:6: Error: Can't use an expression of type 'X2?' as a function because it's potentially null.
+Try calling using ?.call instead.
+  x2n(0); // Error.
+     ^" in x2n.call{(dynamic) → dynamic}(0){(dynamic) → dynamic};
+  invalid-expression "pkg/front_end/testcases/records/issue54616_2.dart:41:6: Error: Can't use an expression of type 'X3?' as a function because it's potentially null.
+Try calling using ?.call instead.
+  x3n(0); // Error.
+     ^" in x3n.call{(dynamic) → dynamic}(0){(dynamic) → dynamic};
+  invalid-expression "pkg/front_end/testcases/records/issue54616_2.dart:42:6: Error: The method 'call' isn't defined for the class '(String)?'.
+Try correcting the name to the name of an existing method, or defining a method named 'call'.
+  x4n(0); // Error.
+     ^" in x4n{<unresolved>}.call(0);
+  self::EInt|call(x1, 0);
+  x2.call{(dynamic) → dynamic}(0){(dynamic) → dynamic};
+  x3.call{(dynamic) → dynamic}(0){(dynamic) → dynamic};
+  invalid-expression "pkg/front_end/testcases/records/issue54616_2.dart:47:6: Error: The method 'call' isn't defined for the class '(String)'.
+Try correcting the name to the name of an existing method, or defining a method named 'call'.
+  x4.call(0); // Error.
+     ^^^^" in x4{<unresolved>}.call(0);
+  invalid-expression "pkg/front_end/testcases/records/issue54616_2.dart:48:7: Error: Method 'call' cannot be called on 'X1?' because it is potentially null.
+Try calling using ?. instead.
+  x1n.call(0); // Error.
+      ^^^^" in self::EInt|call(x1n, 0);
+  invalid-expression "pkg/front_end/testcases/records/issue54616_2.dart:49:7: Error: Can't use an expression of type 'X2?' as a function because it's potentially null.
+Try calling using ?.call instead.
+  x2n.call(0); // Error.
+      ^" in x2n.call{(dynamic) → dynamic}(0){(dynamic) → dynamic};
+  invalid-expression "pkg/front_end/testcases/records/issue54616_2.dart:50:7: Error: Can't use an expression of type 'X3?' as a function because it's potentially null.
+Try calling using ?.call instead.
+  x3n.call(0); // Error.
+      ^" in x3n.call{(dynamic) → dynamic}(0){(dynamic) → dynamic};
+  invalid-expression "pkg/front_end/testcases/records/issue54616_2.dart:51:7: Error: The method 'call' isn't defined for the class '(String)?'.
+Try correcting the name to the name of an existing method, or defining a method named 'call'.
+  x4n.call(0); // Error.
+      ^^^^" in x4n{<unresolved>}.call(0);
+}