Handle @NoInline annotations in closed_world2_test

tests/compiler/dart2js/kernel/closed_world2_test.dart

 // Copyright (c) 2017, 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.
 
 // Partial test that the closed world computed from [WorldImpact]s derived from
 // kernel is equivalent to the original computed from resolution.
 library dart2js.kernel.closed_world2_test;
 
 import 'dart:async';
 
@@ skipping 37 matching lines @@
 import '../serialization/helper.dart';
 import '../serialization/model_test_helper.dart';
 import '../serialization/test_helper.dart';
 
 import 'closed_world_test.dart' hide KernelWorkItemBuilder;
 import 'impact_test.dart';
 
 const SOURCE = const {
   'main.dart': '''
 import 'dart:html';
+import 'package:expect/expect.dart';
 
+@NoInline()
 main() {
   print('Hello World');
   ''.contains; // Trigger member closurization.
   new Element.div();
 }
 '''
 };
 
 main(List<String> args) {
   asyncTest(() async {
     await mainInternal(args);
   });
 }
 
-Future mainInternal(List<String> args) async {
+Future mainInternal(List<String> args,
+    {bool skipWarnings: false, bool skipErrors: false}) async {
   Arguments arguments = new Arguments.from(args);
   Uri entryPoint;
   Map<String, String> memorySourceFiles;
   if (arguments.uri != null) {
     entryPoint = arguments.uri;
     memorySourceFiles = const <String, String>{};
   } else {
     entryPoint = Uri.parse('memory:main.dart');
     memorySourceFiles = SOURCE;
   }
 
   enableDebugMode();
 
   print('---- analyze-only ------------------------------------------------');
+  DiagnosticCollector collector = new DiagnosticCollector();
   Compiler compiler1 = compilerFor(
       entryPoint: entryPoint,
       memorySourceFiles: memorySourceFiles,
+      diagnosticHandler: collector,
       options: [Flags.analyzeOnly, Flags.enableAssertMessage]);
   ElementResolutionWorldBuilder.useInstantiationMap = true;
   compiler1.resolution.retainCachesForTesting = true;
   await compiler1.run(entryPoint);
+  if (collector.errors.isNotEmpty && skipErrors) {
+    print('Skipping due to errors.');
+    return;
+  }
+  if (collector.warnings.isNotEmpty && skipWarnings) {
+    print('Skipping due to warnings.');
+    return;
+  }
   Expect.isFalse(compiler1.compilationFailed);
   ResolutionEnqueuer enqueuer1 = compiler1.enqueuer.resolution;
   BackendUsage backendUsage1 = compiler1.backend.backendUsage;
   ClosedWorld closedWorld1 = compiler1.resolutionWorldBuilder.closeWorld();
 
   print('---- analyze-all -------------------------------------------------');
   Compiler compiler = compilerFor(
       entryPoint: entryPoint,
       memorySourceFiles: memorySourceFiles,
       options: [Flags.analyzeAll, Flags.useKernel, Flags.enableAssertMessage]);
@@ skipping 176 matching lines @@
 
   MemoryDillLibraryLoaderTask(KernelToElementMap elementMap,
       DiagnosticReporter reporter, Measurer measurer, this.program)
       : super(elementMap, null, null, reporter, measurer);
 
   Future<LoadedLibraries> loadLibrary(Uri resolvedUri,
       {bool skipFileWithPartOfTag: false}) async {
     return createLoadedLibraries(program);
   }
 }