Pretenure code generation corner case with new space COW arrays.

src/factory.cc

Index: src/factory.cc
diff --git a/src/factory.cc b/src/factory.cc
index 4dd7f770d14ba09d06cadebc5e3acba1652e8440..7ac3c0d81d9b7638f1711adfdabc9ccf5b59a33e 100644
--- a/src/factory.cc
+++ b/src/factory.cc
@@ -889,6 +889,15 @@ Handle<FixedArray> Factory::CopyFixedArray(Handle<FixedArray> array) {
 }
 
 
+Handle<FixedArray> Factory::CopyAndTenureFixedCOWArray(
+    Handle<FixedArray> array) {
+  ASSERT(isolate()->heap()->InNewSpace(*array));
+  CALL_HEAP_FUNCTION(isolate(),
+                     isolate()->heap()->CopyAndTenureFixedCOWArray(*array),
+                     FixedArray);
+}
+
+
 Handle<FixedArray> Factory::CopySizeFixedArray(Handle<FixedArray> array,
                                                int new_length,
                                                PretenureFlag pretenure) {