Prototype implementation of GET_OWN_PROPERTY intrinsic.

src/ast.h

Index: src/ast.h
diff --git a/src/ast.h b/src/ast.h
index e18fdc79c71ffad36d3af96e65389775b039b6c9..a874addd9aaf318ff2ae0f1c055082733cba52c9 100644
--- a/src/ast.h
+++ b/src/ast.h
@@ -1705,6 +1705,7 @@ class Property V8_FINAL : public Expression, public FeedbackSlotInterface {
   bool HasNoTypeInformation() {
     return is_uninitialized_;
   }
+  bool IsOwnProperty() const { return is_own_property_; }
   void set_is_uninitialized(bool b) { is_uninitialized_ = b; }
   void set_is_string_access(bool b) { is_string_access_ = b; }
   void mark_for_call() { is_for_call_ = true; }
@@ -1728,7 +1729,10 @@ class Property V8_FINAL : public Expression, public FeedbackSlotInterface {
         property_feedback_slot_(kInvalidFeedbackSlot),
         is_for_call_(false),
         is_uninitialized_(false),
-        is_string_access_(false) {}
+        is_string_access_(false),
+        is_own_property_(false) {}
+
+  void set_is_own_property(bool b) { is_own_property_ = b; }
 
  private:
   Expression* obj_;
@@ -1740,6 +1744,7 @@ class Property V8_FINAL : public Expression, public FeedbackSlotInterface {
   bool is_for_call_ : 1;
   bool is_uninitialized_ : 1;
   bool is_string_access_ : 1;
+  bool is_own_property_ : 1;
 };
 
 
@@ -3346,6 +3351,12 @@ class AstNodeFactory V8_FINAL BASE_EMBEDDED {
     VISIT_AND_RETURN(Property, prop)
   }
 
+  Property* NewOwnProperty(Expression* obj, Expression* key, int pos) {
+    Property* prop = new(zone_) Property(zone_, obj, key, pos);
+    prop->set_is_own_property(true);
+    VISIT_AND_RETURN(Property, prop);
+  }
+
   Call* NewCall(Expression* expression,
                 ZoneList<Expression*>* arguments,
                 int pos) {