[Decoupling] Port PR (#186667) from flutter/flutter to material_ui and cupertino_ui (#11964)

Most Material and Cupertino code was copied over from flutter/flutter in #11888, but a few PRs landed after that copy. This PR copies one of those PRs to this repo.

This PR is the first PR to be ported over. Reviewers please let me know if the process of porting PRs like this looks alright to you!

Ports over flutter/flutter#186667.

Part of flutter/flutter#188441 and flutter/flutter#188395.

Author: justinmc

…disabled_tests/elevated_button_test.dart …terial_ui/test/elevated_button_test.dartpackages/material_ui/temporarily_disabled_tests/elevated_button_test.dart renamed to packages/material_ui/test/elevated_button_test.dart packages/material_ui/temporarily_disabled_tests/elevated_button_test.dart renamed to packages/material_ui/test/elevated_button_test.dart

@@ -2,16 +2,13 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-@Skip(
-  'This file is skipped due to a cross-import that needs to be fixed. Tracked in https://github.com/flutter/flutter/issues/177028.',
-)
 import 'package:flutter/foundation.dart';
 import 'package:flutter/gestures.dart';
-import 'package:material_ui/material_ui.dart';
 import 'package:flutter/rendering.dart';
 import 'package:flutter_test/flutter_test.dart';
+import 'package:material_ui/material_ui.dart';
 
-import '../widgets/semantics_tester.dart';
+import 'semantics_tester.dart';
 
 void main() {
   TextStyle iconStyle(WidgetTester tester, IconData icon) {

…y_disabled_tests/filled_button_test.dart …material_ui/test/filled_button_test.dartpackages/material_ui/temporarily_disabled_tests/filled_button_test.dart renamed to packages/material_ui/test/filled_button_test.dart packages/material_ui/temporarily_disabled_tests/filled_button_test.dart renamed to packages/material_ui/test/filled_button_test.dart

@@ -2,16 +2,13 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-@Skip(
-  'This file is skipped due to a cross-import that needs to be fixed. Tracked in https://github.com/flutter/flutter/issues/177028.',
-)
 import 'package:flutter/foundation.dart';
 import 'package:flutter/gestures.dart';
-import 'package:material_ui/material_ui.dart';
 import 'package:flutter/rendering.dart';
 import 'package:flutter_test/flutter_test.dart';
+import 'package:material_ui/material_ui.dart';
 
-import '../widgets/semantics_tester.dart';
+import 'semantics_tester.dart';
 
 void main() {
   TextStyle iconStyle(WidgetTester tester, IconData icon) {

…disabled_tests/material_button_test.dart …terial_ui/test/material_button_test.dartpackages/material_ui/temporarily_disabled_tests/material_button_test.dart renamed to packages/material_ui/test/material_button_test.dart packages/material_ui/temporarily_disabled_tests/material_button_test.dart renamed to packages/material_ui/test/material_button_test.dart

@@ -2,15 +2,13 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-@Skip(
-  'This file is skipped due to a cross-import that needs to be fixed. Tracked in https://github.com/flutter/flutter/issues/177028.',
-)
 import 'package:flutter/foundation.dart' show kIsWeb;
 import 'package:flutter/gestures.dart';
-import 'package:material_ui/material_ui.dart';
 import 'package:flutter/rendering.dart';
 import 'package:flutter_test/flutter_test.dart';
-import '../widgets/semantics_tester.dart';
+import 'package:material_ui/material_ui.dart';
+
+import 'semantics_tester.dart';
 
 void main() {
   setUp(() {

…disabled_tests/outlined_button_test.dart …terial_ui/test/outlined_button_test.dartpackages/material_ui/temporarily_disabled_tests/outlined_button_test.dart renamed to packages/material_ui/test/outlined_button_test.dart packages/material_ui/temporarily_disabled_tests/outlined_button_test.dart renamed to packages/material_ui/test/outlined_button_test.dart

@@ -2,21 +2,18 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-@Skip(
-  'This file is skipped due to a cross-import that needs to be fixed. Tracked in https://github.com/flutter/flutter/issues/177028.',
-)
 // This file is run as part of a reduced test set in CI on Mac and Windows
 // machines.
 @Tags(<String>['reduced-test-set'])
 library;
 
 import 'package:flutter/foundation.dart';
 import 'package:flutter/gestures.dart';
-import 'package:material_ui/material_ui.dart';
 import 'package:flutter/rendering.dart';
 import 'package:flutter_test/flutter_test.dart';
+import 'package:material_ui/material_ui.dart';
 
-import '../widgets/semantics_tester.dart';
+import 'semantics_tester.dart';
 
 void main() {
   TextStyle iconStyle(WidgetTester tester, IconData icon) {

…ily_disabled_tests/text_button_test.dart …s/material_ui/test/text_button_test.dartpackages/material_ui/temporarily_disabled_tests/text_button_test.dart renamed to packages/material_ui/test/text_button_test.dart packages/material_ui/temporarily_disabled_tests/text_button_test.dart renamed to packages/material_ui/test/text_button_test.dart

@@ -2,16 +2,13 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-@Skip(
-  'This file is skipped due to a cross-import that needs to be fixed. Tracked in https://github.com/flutter/flutter/issues/177028.',
-)
 import 'package:flutter/foundation.dart';
 import 'package:flutter/gestures.dart';
-import 'package:material_ui/material_ui.dart';
 import 'package:flutter/rendering.dart';
 import 'package:flutter_test/flutter_test.dart';
+import 'package:material_ui/material_ui.dart';
 
-import '../widgets/semantics_tester.dart';
+import 'semantics_tester.dart';
 
 void main() {
   TextStyle iconStyle(WidgetTester tester, IconData icon) {