[builtins] Add support for NewTarget to Execution::New.

src/execution.h

Index: src/execution.h
diff --git a/src/execution.h b/src/execution.h
index 51fe3d32c00ff8f51902c917c52241c28e918e91..5c25082a66e21e6baf81c9391d075db09b5b50fc 100644
--- a/src/execution.h
+++ b/src/execution.h
@@ -31,13 +31,12 @@ class Execution final : public AllStatic {
                                                   Handle<Object> argv[]);
 
   // Construct object from function, the caller supplies an array of
-  // arguments. Arguments are Object* type. After function returns,
-  // pointers in 'args' might be invalid.
-  //
-  // *pending_exception tells whether the invoke resulted in
-  // a pending exception.
-  //
-  MUST_USE_RESULT static MaybeHandle<Object> New(Handle<JSFunction> func,
+  // arguments.
+  MUST_USE_RESULT static MaybeHandle<Object> New(Handle<JSFunction> constructor,
+                                                 int argc,
+                                                 Handle<Object> argv[]);
+  MUST_USE_RESULT static MaybeHandle<Object> New(Handle<JSFunction> constructor,
+                                                 Handle<JSFunction> new_target,
                                                  int argc,
                                                  Handle<Object> argv[]);