Fix memento initialization when constructing from new call

src/frames.cc

Index: src/frames.cc
diff --git a/src/frames.cc b/src/frames.cc
index 5dea8484c96ea1318fa15e4bee21f98287e15a5f..66bcf3d448445ba6d93c207a7ea73dcd92f59fe6 100644
--- a/src/frames.cc
+++ b/src/frames.cc
@@ -738,8 +738,8 @@ Object* JavaScriptFrame::GetOriginalConstructor() const {
   }
   DCHECK(IsConstructFrame(fp));
   STATIC_ASSERT(ConstructFrameConstants::kOriginalConstructorOffset ==
-                StandardFrameConstants::kExpressionsOffset - 2 * kPointerSize);
-  return GetExpression(fp, 2);
+                StandardFrameConstants::kExpressionsOffset - 3 * kPointerSize);
+  return GetExpression(fp, 3);
 }