Revert of ES6 computed property names

src/parser.h

Index: src/parser.h
diff --git a/src/parser.h b/src/parser.h
index 0c58869dd639169d027934e465237c49b844af37..02dfe15f8ef31bdc76b978277433c62951c5d921 100644
--- a/src/parser.h
+++ b/src/parser.h
@@ -412,6 +412,11 @@
     return string->AsArrayIndex(index);
   }
 
+  bool IsConstructorProperty(ObjectLiteral::Property* property) {
+    return property->key()->raw_value()->EqualsString(
+        ast_value_factory()->constructor_string());
+  }
+
   static Expression* GetPropertyValue(ObjectLiteral::Property* property) {
     return property->value();
   }
@@ -421,9 +426,7 @@
   static void PushLiteralName(FuncNameInferrer* fni, const AstRawString* id) {
     fni->PushLiteralName(id);
   }
-
   void PushPropertyName(FuncNameInferrer* fni, Expression* expression);
-
   static void InferFunctionName(FuncNameInferrer* fni,
                                 FunctionLiteral* func_to_infer) {
     fni->AddFunction(func_to_infer);