Issue 27179. Materialize synthetic constructors on rename.

pkg/analysis_server/test/services/refactoring/rename_constructor_test.dart

 // Copyright (c) 2014, 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.
 
 library test.services.refactoring.rename_constructor;
 
 import 'package:analysis_server/plugin/protocol/protocol.dart';
 import 'package:analysis_server/src/services/correction/status.dart';
 import 'package:analysis_server/src/services/refactoring/refactoring.dart';
 import 'package:analyzer/dart/ast/ast.dart';
@@ skipping 114 matching lines @@
 class B extends A {
   B() : super.newName() {}
   factory B._() = A.newName;
 }
 main() {
   new A.newName();
 }
 ''');
   }
 
+  test_createChange_add_toSynthetic() {
+    indexTestUnit('''
+class A {
+}
+class B extends A {
+  B() : super() {}
+  factory B._() = A;
+}
+main() {
+  new A();
+}
+''');
+    // configure refactoring
+    _createConstructorInvocationRefactoring('new A();');
+    expect(refactoring.refactoringName, 'Rename Constructor');
+    expect(refactoring.elementKindName, 'constructor');
+    expect(refactoring.oldName, '');
+    // validate change
+    refactoring.newName = 'newName';
+    return assertSuccessfulRefactoring('''
+class A {
+  A.newName();
+}
+class B extends A {
+  B() : super.newName() {}
+  factory B._() = A.newName;
+}
+main() {
+  new A.newName();
+}
+''');
+  }
+
   test_createChange_change() {
     indexTestUnit('''
 class A {
   A.test() {} // marker
 }
 class B extends A {
   B() : super.test() {}
   factory B._() = A.test;
 }
 main() {
@@ skipping 58 matching lines @@
   void test_newInstance_nullElement() {
     RenameRefactoring refactoring = new RenameRefactoring(searchEngine, null);
     expect(refactoring, isNull);
   }
 
   void _createConstructorDeclarationRefactoring(String search) {
     ConstructorElement element = findNodeElementAtString(
         search, (node) => node is ConstructorDeclaration);
     createRenameRefactoringForElement(element);
   }
+
+  void _createConstructorInvocationRefactoring(String search) {
+    ConstructorElement element = findNodeElementAtString(
+        search, (node) => node is InstanceCreationExpression);
+    createRenameRefactoringForElement(element);
+  }
 }