[vm_service] Bump vm_service language version to 3.2.

Remove older version tags in vm_service and clean up old experiments.

Bug: b/318347018
Change-Id: I6bf87e46878d57d05d7f9d64674ce0c573364d4a
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/345302
Reviewed-by: Ben Konyi <bkonyi@google.com>
Commit-Queue: Jonas Termansen <sortie@google.com>

pkg/vm_service/lib/src/dart_io_extensions.dart

@@ -507,7 +507,7 @@ class HttpProfileRequestData {
   Map<String, dynamic>? get connectionInfo {
     return _connectionInfo == null
         ? null
-        : UnmodifiableMapView(_connectionInfo!);
+        : UnmodifiableMapView(_connectionInfo);
   }
 
   final Map<String, dynamic>? _connectionInfo;

pkg/vm_service/lib/src/vm_service.dart

@@ -1745,7 +1745,7 @@ class VmService {
     });
     _outstandingRequests.clear();
     if (_disposeHandler != null) {
-      await _disposeHandler!();
+      await _disposeHandler();
     }
     if (!_onDoneCompleter.isCompleted) {
       _onDoneCompleter.complete();

pkg/vm_service/pubspec.yaml

@@ -7,7 +7,7 @@ description: >-
 repository: https://github.com/dart-lang/sdk/tree/main/pkg/vm_service
 
 environment:
-  sdk: ^3.0.0
+  sdk: ^3.2.0
 
 # We use 'any' version constraints here as we get our package versions from
 # the dart-lang/sdk repo's DEPS file. Note that this is a special case; the

pkg/vm_service/test/breakpoint_in_enhanced_enums_test.dart

@@ -2,8 +2,6 @@
 // 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.
 
-// @dart=2.17
-
 import 'common/service_test_common.dart';
 import 'common/test_helper.dart';
 

pkg/vm_service/test/breakpoint_on_record_assignment_test.dart

@@ -2,8 +2,6 @@
 // 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.
 
-// @dart=3.0
-
 import 'common/service_test_common.dart';
 import 'common/test_helper.dart';
 

pkg/vm_service/test/enhanced_enum_test.dart

@@ -2,8 +2,6 @@
 // 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.
 
-// @dart=2.17
-
 import 'dart:developer';
 
 import 'package:test/test.dart';

pkg/vm_service/test/eval_named_args_anywhere_test.dart

@@ -2,7 +2,6 @@
 // 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.
 
-// @dart=2.17
 // ignore_for_file: unused_element
 
 import 'dart:developer';

pkg/vm_service/test/get_object_rpc_test.dart

@@ -1,7 +1,6 @@
 // Copyright (c) 2022, 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.
-// @dart=3.0
 
 // ignore_for_file: library_private_types_in_public_api
 

pkg/vm_service/test/patterns_local_vars_test.dart

@@ -2,9 +2,6 @@
 // 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.
 
-// @dart=3.0
-// ignore_for_file: experiment_not_enabled
-
 import 'dart:developer';
 import 'package:test/test.dart';
 import 'package:vm_service/vm_service.dart';

pkg/vm_service/test/step_through_patterns_test.dart

@@ -2,8 +2,6 @@
 // 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.
 
-// @dart=3.0
-
 import 'dart:math' show pi;
 import 'common/service_test_common.dart';
 import 'common/test_helper.dart';

pkg/vm_service/test/super_constructor_invocation_test.dart

@@ -2,8 +2,6 @@
 // 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.
 
-// @dart=2.17
-
 import 'dart:developer';
 
 import 'package:test/test.dart';

pkg/vm_service/tool/dart/generate_dart_common.dart

@@ -1056,7 +1056,7 @@ class TypeField extends Member {
 
   @override
   String? get docs {
-    String str = _docs == null ? '' : _docs!;
+    String str = _docs ?? '';
     if (type.isMultipleReturns) {
       str += '\n\n[$generatableName] can be one of '
           '${joinLast(type.types.map((t) => '[$t]'), ', ', ' or ')}.';

pkg/vm_service/tool/java/generate_java.dart

@@ -929,7 +929,7 @@ class TypeField extends Member {
 
   @override
   String? get docs {
-    String str = _docs == null ? '' : _docs!;
+    String str = _docs ?? '';
     if (type.isMultipleReturns) {
       str += '\n\n@return one of '
           '${joinLast(type.types.map((t) => '<code>$t</code>'), ', ', ' or ')}';