dartfmt dart2js and unittests

pkg/compiler/lib/src/elements/common.dart

Index: pkg/compiler/lib/src/elements/common.dart
diff --git a/pkg/compiler/lib/src/elements/common.dart b/pkg/compiler/lib/src/elements/common.dart
index 6ab5de20fdad0c55adfe7fcced9fc896bf5ef782..83eb3ea2bd5027270520d915c918fef6b7e55cb8 100644
--- a/pkg/compiler/lib/src/elements/common.dart
+++ b/pkg/compiler/lib/src/elements/common.dart
@@ -601,7 +601,12 @@ abstract class AbstractFieldElementCommon implements AbstractFieldElement {
   }
 }
 
-enum _FromEnvironmentState { NOT, BOOL, INT, STRING, }
+enum _FromEnvironmentState {
+  NOT,
+  BOOL,
+  INT,
+  STRING,
+}
 
 abstract class ConstructorElementCommon implements ConstructorElement {
   _FromEnvironmentState _fromEnvironmentState;