dart2js: format 'static' sections better.

pkg/compiler/lib/src/js_emitter/full_emitter/class_emitter.dart

Index: pkg/compiler/lib/src/js_emitter/full_emitter/class_emitter.dart
diff --git a/pkg/compiler/lib/src/js_emitter/full_emitter/class_emitter.dart b/pkg/compiler/lib/src/js_emitter/full_emitter/class_emitter.dart
index f625c8a04f0ab08680a9f8db7607b0a4cd40aa94..9aab2acf733eb9623b842f582c898fe4ba4f950c 100644
--- a/pkg/compiler/lib/src/js_emitter/full_emitter/class_emitter.dart
+++ b/pkg/compiler/lib/src/js_emitter/full_emitter/class_emitter.dart
@@ -328,8 +328,9 @@ class ClassEmitter extends CodeEmitterHelper {
     }
 
     if (!statics.isEmpty) {
-      classBuilder.addPropertyByName('static',
-                                     new jsAst.ObjectInitializer(statics));
+      classBuilder.addPropertyByName(
+          'static',
+          new jsAst.ObjectInitializer(statics, isOneLiner: false));
     }
 
     // TODO(ahe): This method (generateClass) should return a jsAst.Expression.