dart2js: run dartfmt on tests

tests/compiler/dart2js/library_env_test.dart

 // Copyright (c) 2016, 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.
 
 /// Check that 'dart:' libraries have their corresponding dart.library.X
 /// environment variable set.
 
 import "memory_source_file_helper.dart";
 
 import "package:async_helper/async_helper.dart";
 
-import 'package:expect/expect.dart' show
-    Expect;
+import 'package:expect/expect.dart' show Expect;
 
-import 'package:compiler/src/null_compiler_output.dart' show
-    NullCompilerOutput;
+import 'package:compiler/src/null_compiler_output.dart' show NullCompilerOutput;
 
-import 'package:compiler/src/options.dart' show
-    CompilerOptions;
+import 'package:compiler/src/options.dart' show CompilerOptions;
 
-import 'package:compiler/compiler_new.dart' show
-    CompilerInput,
-    CompilerDiagnostics;
+import 'package:compiler/compiler_new.dart'
+    show CompilerInput, CompilerDiagnostics;
 
 const clientPlatform = r'''
 [dart-spec]
 spec: 3rd edition.
 
 [features]
 # No extra features
 
 [libraries]
 mock.client: mock1.dart
@@ skipping 34 matching lines @@
   const DummyCompilerDiagnostics();
 
   report(code, uri, begin, end, text, kind) {
     throw "should not be needed";
   }
 }
 
 class CustomCompiler extends CompilerImpl {
   CustomCompiler(options, environment)
       : super(
-          const DummyCompilerInput(),
-          const NullCompilerOutput(),
-          const DummyCompilerDiagnostics(),
-          new CompilerOptions.parse(
-              libraryRoot: Uri.base.resolve("sdk/"),
-              options: options,
-              environment: environment));
+            const DummyCompilerInput(),
+            const NullCompilerOutput(),
+            const DummyCompilerDiagnostics(),
+            new CompilerOptions.parse(
+                libraryRoot: Uri.base.resolve("sdk/"),
+                options: options,
+                environment: environment));
 }
 
 runTest() async {
   var compiler = new CustomCompiler([], {});
 
   await compiler.setupSdk();
 
   // Core libraries are always present.
   Expect.equals("true", compiler.fromEnvironment("dart.library.collection"));
   // Non-existing entries in the environment return 'null'.
@@ skipping 19 matching lines @@
   Expect.equals(null, compiler.fromEnvironment("dart.library.mock.client"));
   Expect.equals(null, compiler.fromEnvironment("dart.library.html"));
   // Check for shared libraries..
   Expect.equals("true", compiler.fromEnvironment("dart.library.mock.shared"));
   // Check for server libraries.
   Expect.equals("true", compiler.fromEnvironment("dart.library.mock.server"));
   Expect.equals("true", compiler.fromEnvironment("dart.library.io"));
 
   // Check that user-defined env-variables win.
   compiler = new CustomCompiler([],
-      {'dart.library.collection': "false",
-       'dart.library.mock.client': "foo"});
+      {'dart.library.collection': "false", 'dart.library.mock.client': "foo"});
 
   await compiler.setupSdk();
 
   Expect.equals("false", compiler.fromEnvironment("dart.library.collection"));
   Expect.equals("foo", compiler.fromEnvironment("dart.library.mock.client"));
 }
 
 main() {
   asyncStart();
   runTest().then((_) {
     asyncEnd();
   });
 }