Pretenure call new support.

src/factory.cc

Index: src/factory.cc
diff --git a/src/factory.cc b/src/factory.cc
index 6bce5d3a6a368d1a47b238944dd1b68a2731ad25..d7ac3d7bfe14c0f7f762c222ba8b160e97a6b8d4 100644
--- a/src/factory.cc
+++ b/src/factory.cc
@@ -1309,6 +1309,18 @@ Handle<JSObject> Factory::NewJSObject(Handle<JSFunction> constructor,
 }
 
 
+Handle<JSObject> Factory::NewJSObjectWithMemento(
+    Handle<JSFunction> constructor,
+    Handle<AllocationSite> site) {
+  JSFunction::EnsureHasInitialMap(constructor);
+  CALL_HEAP_FUNCTION(
+      isolate(),
+      isolate()->heap()->AllocateJSObjectWithAllocationSite(

[Hannes Payer (out of office), 2014/02/18 16:24:26]

The refactoring of AllocateJSObject* should happen in a differen CL. I think we
should keep separate factory methods.

[mvstanton, 2014/02/19 08:40:26]

Right on, I've delivered a CL to you with that refactoring, good idea.

+          *constructor, site),
+      JSObject);
+}
+
+
 Handle<JSModule> Factory::NewJSModule(Handle<Context> context,
                                       Handle<ScopeInfo> scope_info) {
   CALL_HEAP_FUNCTION(