[vm/ffi] Reformat generated tests

`clang-format` has decided to format things slightly differently.
To prevent a huge diff on CLs touching
runtime/bin/ffi_test/ffi_test_functions_generated.cc, run a reformat
eagerly.

The generation script now explicitly uses the the clang-format from
the buildtools/ dir. (It was likely using the one on PATH.)

Also, clean up Dart imports to use single quotes, and generate an
ignore to prevent warnings.

TEST=tests/ffi

Change-Id: I54e24d62fe742770fb041bba73110c5285250fb4
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/362763
Reviewed-by: Hossein Yousefi <yousefi@google.com>
Commit-Queue: Hossein Yousefi <yousefi@google.com>
Commit-Queue: Daco Harkes <dacoharkes@google.com>
Auto-Submit: Daco Harkes <dacoharkes@google.com>

tests/ffi/function_callbacks_structs_by_value_generated_test.dart

@@ -13,8 +13,9 @@
 
 import 'dart:ffi';
 
-import "package:expect/expect.dart";
-import "package:ffi/ffi.dart";
+import 'package:expect/expect.dart';
+// ignore: unused_import
+import 'package:ffi/ffi.dart';
 
 import 'callback_tests_utils.dart';
 

tests/ffi/function_callbacks_structs_by_value_native_callable_generated_test.dart

@@ -13,8 +13,9 @@
 
 import 'dart:ffi';
 
-import "package:expect/expect.dart";
-import "package:ffi/ffi.dart";
+import 'package:expect/expect.dart';
+// ignore: unused_import
+import 'package:ffi/ffi.dart';
 
 import 'callback_tests_utils.dart';
 

tests/ffi/function_callbacks_varargs_generated_test.dart

@@ -13,7 +13,9 @@
 
 import 'dart:ffi';
 
-import "package:expect/expect.dart";
+import 'package:expect/expect.dart';
+// ignore: unused_import
+import 'package:ffi/ffi.dart';
 
 import 'callback_tests_utils.dart';
 

tests/ffi/function_callbacks_varargs_native_callable_generated_test.dart

@@ -13,7 +13,9 @@
 
 import 'dart:ffi';
 
-import "package:expect/expect.dart";
+import 'package:expect/expect.dart';
+// ignore: unused_import
+import 'package:ffi/ffi.dart';
 
 import 'callback_tests_utils.dart';
 

tests/ffi/function_structs_by_value_generated_args_leaf_test.dart

@@ -13,8 +13,9 @@
 
 import 'dart:ffi';
 
-import "package:expect/expect.dart";
-import "package:ffi/ffi.dart";
+import 'package:expect/expect.dart';
+// ignore: unused_import
+import 'package:ffi/ffi.dart';
 
 import 'dylib_utils.dart';
 

tests/ffi/function_structs_by_value_generated_args_native_leaf_test.dart

@@ -13,8 +13,9 @@
 
 import 'dart:ffi';
 
-import "package:expect/expect.dart";
-import "package:ffi/ffi.dart";
+import 'package:expect/expect.dart';
+// ignore: unused_import
+import 'package:ffi/ffi.dart';
 
 import 'dylib_utils.dart';
 

tests/ffi/function_structs_by_value_generated_args_native_test.dart

@@ -13,8 +13,9 @@
 
 import 'dart:ffi';
 
-import "package:expect/expect.dart";
-import "package:ffi/ffi.dart";
+import 'package:expect/expect.dart';
+// ignore: unused_import
+import 'package:ffi/ffi.dart';
 
 import 'dylib_utils.dart';
 

tests/ffi/function_structs_by_value_generated_args_test.dart

@@ -13,8 +13,9 @@
 
 import 'dart:ffi';
 
-import "package:expect/expect.dart";
-import "package:ffi/ffi.dart";
+import 'package:expect/expect.dart';
+// ignore: unused_import
+import 'package:ffi/ffi.dart';
 
 import 'dylib_utils.dart';
 

tests/ffi/function_structs_by_value_generated_ret_arg_leaf_test.dart

@@ -13,8 +13,9 @@
 
 import 'dart:ffi';
 
-import "package:expect/expect.dart";
-import "package:ffi/ffi.dart";
+import 'package:expect/expect.dart';
+// ignore: unused_import
+import 'package:ffi/ffi.dart';
 
 import 'dylib_utils.dart';
 

tests/ffi/function_structs_by_value_generated_ret_arg_native_leaf_test.dart

@@ -13,8 +13,9 @@
 
 import 'dart:ffi';
 
-import "package:expect/expect.dart";
-import "package:ffi/ffi.dart";
+import 'package:expect/expect.dart';
+// ignore: unused_import
+import 'package:ffi/ffi.dart';
 
 import 'dylib_utils.dart';
 

tests/ffi/function_structs_by_value_generated_ret_arg_native_test.dart

@@ -13,8 +13,9 @@
 
 import 'dart:ffi';
 
-import "package:expect/expect.dart";
-import "package:ffi/ffi.dart";
+import 'package:expect/expect.dart';
+// ignore: unused_import
+import 'package:ffi/ffi.dart';
 
 import 'dylib_utils.dart';
 

tests/ffi/function_structs_by_value_generated_ret_arg_test.dart

@@ -13,8 +13,9 @@
 
 import 'dart:ffi';
 
-import "package:expect/expect.dart";
-import "package:ffi/ffi.dart";
+import 'package:expect/expect.dart';
+// ignore: unused_import
+import 'package:ffi/ffi.dart';
 
 import 'dylib_utils.dart';
 

tests/ffi/function_structs_by_value_generated_ret_leaf_test.dart

@@ -13,8 +13,9 @@
 
 import 'dart:ffi';
 
-import "package:expect/expect.dart";
-import "package:ffi/ffi.dart";
+import 'package:expect/expect.dart';
+// ignore: unused_import
+import 'package:ffi/ffi.dart';
 
 import 'dylib_utils.dart';
 

tests/ffi/function_structs_by_value_generated_ret_native_leaf_test.dart

@@ -13,8 +13,9 @@
 
 import 'dart:ffi';
 
-import "package:expect/expect.dart";
-import "package:ffi/ffi.dart";
+import 'package:expect/expect.dart';
+// ignore: unused_import
+import 'package:ffi/ffi.dart';
 
 import 'dylib_utils.dart';
 

tests/ffi/function_structs_by_value_generated_ret_native_test.dart

@@ -13,8 +13,9 @@
 
 import 'dart:ffi';
 
-import "package:expect/expect.dart";
-import "package:ffi/ffi.dart";
+import 'package:expect/expect.dart';
+// ignore: unused_import
+import 'package:ffi/ffi.dart';
 
 import 'dylib_utils.dart';
 

tests/ffi/function_structs_by_value_generated_ret_test.dart

@@ -13,8 +13,9 @@
 
 import 'dart:ffi';
 
-import "package:expect/expect.dart";
-import "package:ffi/ffi.dart";
+import 'package:expect/expect.dart';
+// ignore: unused_import
+import 'package:ffi/ffi.dart';
 
 import 'dylib_utils.dart';
 

tests/ffi/function_varargs_generated_leaf_test.dart

@@ -13,8 +13,9 @@
 
 import 'dart:ffi';
 
-import "package:expect/expect.dart";
-import "package:ffi/ffi.dart";
+import 'package:expect/expect.dart';
+// ignore: unused_import
+import 'package:ffi/ffi.dart';
 
 import 'dylib_utils.dart';
 

tests/ffi/function_varargs_generated_native_leaf_test.dart

@@ -13,8 +13,9 @@
 
 import 'dart:ffi';
 
-import "package:expect/expect.dart";
-import "package:ffi/ffi.dart";
+import 'package:expect/expect.dart';
+// ignore: unused_import
+import 'package:ffi/ffi.dart';
 
 import 'dylib_utils.dart';
 

tests/ffi/function_varargs_generated_native_test.dart

@@ -13,8 +13,9 @@
 
 import 'dart:ffi';
 
-import "package:expect/expect.dart";
-import "package:ffi/ffi.dart";
+import 'package:expect/expect.dart';
+// ignore: unused_import
+import 'package:ffi/ffi.dart';
 
 import 'dylib_utils.dart';
 

tests/ffi/function_varargs_generated_test.dart

@@ -13,8 +13,9 @@
 
 import 'dart:ffi';
 
-import "package:expect/expect.dart";
-import "package:ffi/ffi.dart";
+import 'package:expect/expect.dart';
+// ignore: unused_import
+import 'package:ffi/ffi.dart';
 
 import 'dylib_utils.dart';
 

tests/ffi/generator/structs_by_value_tests_generator.dart

@@ -2,6 +2,7 @@
 // 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.
 
+import 'dart:ffi';
 import 'dart:io';
 
 import 'c_types.dart';
@@ -1049,8 +1050,9 @@ ${headerCommon(copyrightYear: copyrightYear, generatorPath: generatorPath)}
 
 import 'dart:ffi';
 
-import "package:expect/expect.dart";
-import "package:ffi/ffi.dart";
+import 'package:expect/expect.dart';
+// ignore: unused_import
+import 'package:ffi/ffi.dart';
 
 
 import 'dylib_utils.dart';
@@ -1139,8 +1141,9 @@ ${headerCommon(copyrightYear: copyrightYear, generatorPath: generatorPath)}
 
 import 'dart:ffi';
 
-import "package:expect/expect.dart";
-import "package:ffi/ffi.dart";
+import 'package:expect/expect.dart';
+// ignore: unused_import
+import 'package:ffi/ffi.dart';
 
 
 import 'callback_tests_utils.dart';
@@ -1217,8 +1220,9 @@ ${headerCommon(copyrightYear: 2023, generatorPath: generatorPath)}
 import 'dart:async';
 import 'dart:ffi';
 
-import "package:expect/expect.dart";
-import "package:ffi/ffi.dart";
+import 'package:expect/expect.dart';
+// ignore: unused_import
+import 'package:ffi/ffi.dart';
 
 
 import 'async_callback_tests_utils.dart';
@@ -1284,13 +1288,28 @@ Future<void> writeC() async {
   buffer.write(footerC);
 
   await File(ccPath).writeAsString(buffer.toString());
-  await runProcess("clang-format", ["-i", ccPath]);
+  await runProcess(clangFormatPath, ["-i", ccPath]);
 }
 
-final ccPath = Platform.script
-    .resolve("../../../runtime/bin/ffi_test/ffi_test_functions_generated.cc")
+final sdkRoot = Platform.script.resolve("../../../");
+
+final ccPath = sdkRoot
+    .resolve("runtime/bin/ffi_test/ffi_test_functions_generated.cc")
     .toFilePath();
 
+final clangFormatPath = sdkRoot
+    .resolve(
+        'buildtools/${buildToolsSubdir[Abi.current()]!}/clang/bin/clang-format')
+    .toFilePath();
+
+const buildToolsSubdir = {
+  Abi.linuxArm64: 'linux-arm64',
+  Abi.linuxX64: 'linux-x64',
+  Abi.macosArm64: 'mac-arm64',
+  Abi.macosX64: 'mac-x64',
+  Abi.windowsX64: 'win-x64',
+};
+
 void printUsage() {
   print("""
 Generates structs by value tests.

tests/ffi/native_callables_async_structs_by_value_generated_test.dart

@@ -14,7 +14,9 @@
 import 'dart:async';
 import 'dart:ffi';
 
-import "package:expect/expect.dart";
+import 'package:expect/expect.dart';
+// ignore: unused_import
+import 'package:ffi/ffi.dart';
 
 import 'async_callback_tests_utils.dart';
 

tests/ffi/native_callables_sync_structs_by_value_generated_test.dart

@@ -14,7 +14,9 @@
 import 'dart:async';
 import 'dart:ffi';
 
-import "package:expect/expect.dart";
+import 'package:expect/expect.dart';
+// ignore: unused_import
+import 'package:ffi/ffi.dart';
 
 import 'async_callback_tests_utils.dart';