Add missing license hearders (#2484)

Author: liamappelbe

pkgs/swift2objc/lib/src/config.dart

@@ -1,3 +1,7 @@
+// 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.
+
 import 'package:path/path.dart' as path;
 
 import 'ast/_core/interfaces/declaration.dart';

pkgs/swift2objc/lib/src/generate_wrapper.dart

@@ -1,3 +1,7 @@
+// 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.
+
 import 'dart:io';
 
 import 'package:path/path.dart' as path;

pkgs/swift2objc/lib/src/generator/_core/utils.dart

@@ -1,3 +1,7 @@
+// 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.
+
 import 'dart:io';
 import 'package:path/path.dart' as path;
 import '../../ast/_core/interfaces/availability.dart';

pkgs/swift2objc/lib/src/generator/generator.dart

@@ -1,3 +1,7 @@
+// 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.
+
 import '../ast/_core/interfaces/declaration.dart';
 import '../ast/declarations/compounds/class_declaration.dart';
 import 'generators/class_generator.dart';

pkgs/swift2objc/lib/src/transformer/transformers/transform_globals.dart

@@ -1,3 +1,7 @@
+// 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.
+
 import '../../ast/_core/interfaces/declaration.dart';
 import '../../ast/declarations/built_in/built_in_declaration.dart';
 import '../../ast/declarations/compounds/class_declaration.dart';

pkgs/swift2objc/lib/src/transformer/transformers/transform_variable.dart

@@ -1,3 +1,7 @@
+// 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.
+
 import '../../ast/_core/interfaces/declaration.dart';
 import '../../ast/_core/interfaces/variable_declaration.dart';
 import '../../ast/_core/shared/referred_type.dart';