dart2js: run dartfmt on tests

tests/compiler/dart2js/minimal_resolution_test.dart

 // Copyright (c) 2015, 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.
 
 // Test that elements are not needlessly required by dart2js.
 
 import 'package:async_helper/async_helper.dart';
 import 'package:compiler/src/compiler.dart';
 import 'package:compiler/src/elements/elements.dart';
 import 'package:compiler/src/enqueue.dart';
@@ skipping 21 matching lines @@
   Expect.equals(
       expected, isProcessed, 'Unexpected processing state of class $cls.');
 }
 
 analyze(String code,
     {bool proxyConstantComputed: false, bool deprecatedClass: false}) async {
   CompilationResult result = await runCompiler(
       memorySourceFiles: {'main.dart': code}, options: ['--analyze-only']);
   Expect.isTrue(result.isSuccess);
   Compiler compiler = result.compiler;
-  Expect.equals(proxyConstantComputed,
+  Expect.equals(
+      proxyConstantComputed,
       compiler.resolution.wasProxyConstantComputedTestingOnly,
       "Unexpected computation of proxy constant.");
 
   checkInstantiated(
-      compiler, compiler.commonElements.coreLibrary.find('_Proxy'),
+      compiler,
+      compiler.commonElements.coreLibrary.find('_Proxy'),
       proxyConstantComputed);
-  checkInstantiated(
-      compiler, compiler.commonElements.coreLibrary.find('Deprecated'),
-      deprecatedClass);
+  checkInstantiated(compiler,
+      compiler.commonElements.coreLibrary.find('Deprecated'), deprecatedClass);
 
   LibraryElement jsHelperLibrary =
       compiler.libraryLoader.lookupLibrary(BackendHelpers.DART_JS_HELPER);
   jsHelperLibrary.forEachLocalMember((Element element) {
     Uri uri = element.compilationUnit.script.resourceUri;
     if (element.isClass && uri.path.endsWith('annotations.dart')) {
       checkInstantiated(compiler, element, false);
     }
   });
 }