dart2js: run dartfmt on tests

tests/compiler/dart2js/memory_source_file_helper.dart

Index: tests/compiler/dart2js/memory_source_file_helper.dart
diff --git a/tests/compiler/dart2js/memory_source_file_helper.dart b/tests/compiler/dart2js/memory_source_file_helper.dart
index c6b3b3cf33b8c237d860600d4b4a075b7d9f33f2..a198aefdbd1e556177b006c65d58b02f760d7b47 100644
--- a/tests/compiler/dart2js/memory_source_file_helper.dart
+++ b/tests/compiler/dart2js/memory_source_file_helper.dart
@@ -7,20 +7,17 @@ library dart2js.test.memory_source_file_helper;
 import 'dart:async' show Future;
 export 'dart:io' show Platform;
 
-export 'package:compiler/src/apiimpl.dart'
-       show CompilerImpl;
+export 'package:compiler/src/apiimpl.dart' show CompilerImpl;
 
-export 'package:compiler/src/filenames.dart'
-       show currentDirectory;
+export 'package:compiler/src/filenames.dart' show currentDirectory;
 
 import 'package:compiler/src/io/source_file.dart'
-       show StringSourceFile, SourceFile;
+    show StringSourceFile, SourceFile;
 
-import 'package:compiler/src/source_file_provider.dart'
-       show SourceFileProvider;
+import 'package:compiler/src/source_file_provider.dart' show SourceFileProvider;
 
 export 'package:compiler/src/source_file_provider.dart'
-       show SourceFileProvider, FormattingDiagnosticHandler;
+    show SourceFileProvider, FormattingDiagnosticHandler;
 
 class MemorySourceFileProvider extends SourceFileProvider {
   Map<String, String> memorySourceFiles;