ES6: Add support for method shorthand in object literals

src/hydrogen-instructions.h

Index: src/hydrogen-instructions.h
diff --git a/src/hydrogen-instructions.h b/src/hydrogen-instructions.h
index ec50f5bdfd2733c3ab9b8d96159c15c2e37e4865..1535be40c3b62c28bd200982a5579791f2a63665 100644
--- a/src/hydrogen-instructions.h
+++ b/src/hydrogen-instructions.h
@@ -7447,18 +7447,20 @@ class HFunctionLiteral V8_FINAL : public HTemplateInstruction<1> {
   Handle<SharedFunctionInfo> shared_info() const { return shared_info_; }
   bool pretenure() const { return pretenure_; }
   bool has_no_literals() const { return has_no_literals_; }
-  bool is_generator() const { return is_generator_; }
+  bool is_arrow() const { return IsArrowFunction(kind_); }
+  bool is_generator() const { return IsGeneratorFunction(kind_); }
+  bool is_concise_method() const { return IsConciseMethod(kind_); }
+  FunctionKind kind() const { return kind_; }
   StrictMode strict_mode() const { return strict_mode_; }
 
  private:
-  HFunctionLiteral(HValue* context,
-                   Handle<SharedFunctionInfo> shared,
+  HFunctionLiteral(HValue* context, Handle<SharedFunctionInfo> shared,
                    bool pretenure)
       : HTemplateInstruction<1>(HType::JSObject()),
         shared_info_(shared),
+        kind_(shared->kind()),
         pretenure_(pretenure),
         has_no_literals_(shared->num_literals() == 0),
-        is_generator_(shared->is_generator()),
         strict_mode_(shared->strict_mode()) {
     SetOperandAt(0, context);
     set_representation(Representation::Tagged());
@@ -7468,9 +7470,9 @@ class HFunctionLiteral V8_FINAL : public HTemplateInstruction<1> {
   virtual bool IsDeletable() const V8_OVERRIDE { return true; }
 
   Handle<SharedFunctionInfo> shared_info_;
+  FunctionKind kind_;
   bool pretenure_ : 1;
   bool has_no_literals_ : 1;
-  bool is_generator_ : 1;
   StrictMode strict_mode_;
 };