dart2js: run dartfmt on tests

tests/compiler/dart2js/switch_empty_default_test.dart

Index: tests/compiler/dart2js/switch_empty_default_test.dart
diff --git a/tests/compiler/dart2js/switch_empty_default_test.dart b/tests/compiler/dart2js/switch_empty_default_test.dart
index d0d2f884c81889fda9a6300ef965429e3588bf3c..cbddf010701779c53ce519b89aba48c3a8fc3969 100644
--- a/tests/compiler/dart2js/switch_empty_default_test.dart
+++ b/tests/compiler/dart2js/switch_empty_default_test.dart
@@ -121,11 +121,11 @@ main() {
   var case3 = new RegExp(r"case 3:");
 
   asyncTest(() => Future.wait([
-    compileAndDoNotMatch(SIMPLY_EMPTY, 'main', def),
-    compileAndDoNotMatch(TOTAL, 'main', defOrCase3),
-    compileAndDoNotMatch(OPTIMIZED, 'main', def),
-    compileAndMatch(LABEL, 'main', case3),
-    compileAndMatch(DEFLABEL, 'main', def),
-    compileAndMatch(EMPTYDEFLABEL, 'main', def),
-  ]));
+        compileAndDoNotMatch(SIMPLY_EMPTY, 'main', def),
+        compileAndDoNotMatch(TOTAL, 'main', defOrCase3),
+        compileAndDoNotMatch(OPTIMIZED, 'main', def),
+        compileAndMatch(LABEL, 'main', case3),
+        compileAndMatch(DEFLABEL, 'main', def),
+        compileAndMatch(EMPTYDEFLABEL, 'main', def),
+      ]));
 }