dartfmt dart2js and unittests

tests/compiler/dart2js/sourcemaps/output_structure.dart

Index: tests/compiler/dart2js/sourcemaps/output_structure.dart
diff --git a/tests/compiler/dart2js/sourcemaps/output_structure.dart b/tests/compiler/dart2js/sourcemaps/output_structure.dart
index 21a5bc31f47bd442bbec7617db6e42a0bcb4bec7..648973a964399ecd4252900c7561e1c8493ef205 100644
--- a/tests/compiler/dart2js/sourcemaps/output_structure.dart
+++ b/tests/compiler/dart2js/sourcemaps/output_structure.dart
@@ -637,7 +637,11 @@ class Interval {
   String toString() => '[$from,$to[';
 }
 
-enum CodeKind { LIBRARY, CLASS, MEMBER, }
+enum CodeKind {
+  LIBRARY,
+  CLASS,
+  MEMBER,
+}
 
 class CodeLocation {
   final Uri uri;