dart2js: run dartfmt on tests

tests/compiler/dart2js/error_token_test.dart

Index: tests/compiler/dart2js/error_token_test.dart
diff --git a/tests/compiler/dart2js/error_token_test.dart b/tests/compiler/dart2js/error_token_test.dart
index 2000f1a1fabd3c77f05c2a5d65ac7ac0f308c3a3..6c99b6d4b2212e4f98b6e105582d5984c6bfbf0c 100644
--- a/tests/compiler/dart2js/error_token_test.dart
+++ b/tests/compiler/dart2js/error_token_test.dart
@@ -32,21 +32,25 @@ Future runTest(String code, {MessageKind error}) async {
 
 void main() {
   asyncTest(() async {
-    await runTest('''
+    await runTest(
+        '''
 main() {}
 class Foo {
 	static void bar() {
 		baz());
 	}
 }
-''', error: MessageKind.UNMATCHED_TOKEN);
+''',
+        error: MessageKind.UNMATCHED_TOKEN);
 
-    await runTest('''
+    await runTest(
+        '''
 main() {}
 class C {
   C(v) {
     throw '');
   }
-}''', error: MessageKind.UNMATCHED_TOKEN);
+}''',
+        error: MessageKind.UNMATCHED_TOKEN);
   });
 }