dart2js: run dartfmt on tests

tests/compiler/dart2js/no_duplicate_constructor_body_test.dart

Index: tests/compiler/dart2js/no_duplicate_constructor_body_test.dart
diff --git a/tests/compiler/dart2js/no_duplicate_constructor_body_test.dart b/tests/compiler/dart2js/no_duplicate_constructor_body_test.dart
index 3005ddfa3dd52b7a5a008a1f95bcef82ab1bc711..54815d26147efd4e4808e39e30f9a1954338129d 100644
--- a/tests/compiler/dart2js/no_duplicate_constructor_body_test.dart
+++ b/tests/compiler/dart2js/no_duplicate_constructor_body_test.dart
@@ -17,8 +17,8 @@ main() {
 
 main() {
   asyncTest(() => compileAll(CODE).then((generated) {
-    RegExp regexp = new RegExp(r'\A: {[ \n]*"\^": "[A-za-z]+;"');
-    Iterator<Match> matches = regexp.allMatches(generated).iterator;
-    checkNumberOfMatches(matches, 1);
-  }));
+        RegExp regexp = new RegExp(r'\A: {[ \n]*"\^": "[A-za-z]+;"');
+        Iterator<Match> matches = regexp.allMatches(generated).iterator;
+        checkNumberOfMatches(matches, 1);
+      }));
 }