dart2js: run dartfmt on tests

tests/compiler/dart2js/no_duplicate_constructor_body2_test.dart

Index: tests/compiler/dart2js/no_duplicate_constructor_body2_test.dart
diff --git a/tests/compiler/dart2js/no_duplicate_constructor_body2_test.dart b/tests/compiler/dart2js/no_duplicate_constructor_body2_test.dart
index a306a0cf20aae3db5d04db5a8d521bd07c7ac5dd..ab1aa745c1153307045d8e20d6b0a9501cb0458e 100644
--- a/tests/compiler/dart2js/no_duplicate_constructor_body2_test.dart
+++ b/tests/compiler/dart2js/no_duplicate_constructor_body2_test.dart
@@ -23,8 +23,8 @@ main() {
 
 main() {
   asyncTest(() => compileAll(CODE).then((generated) {
-    RegExp regexp = new RegExp(r'A\$0: function');
-    Iterator<Match> matches = regexp.allMatches(generated).iterator;
-    checkNumberOfMatches(matches, 1);
-  }));
+        RegExp regexp = new RegExp(r'A\$0: function');
+        Iterator<Match> matches = regexp.allMatches(generated).iterator;
+        checkNumberOfMatches(matches, 1);
+      }));
 }