Pretenure builtin typed arrays.

src/factory.h

Index: src/factory.h
diff --git a/src/factory.h b/src/factory.h
index d18272661f1fcda5d672c8c4deb9f9445f69197a..e044a1f47dc7706c78eab97023c10e8fba72b849 100644
--- a/src/factory.h
+++ b/src/factory.h
@@ -449,20 +449,25 @@ class Factory final {
   Handle<JSGeneratorObject> NewJSGeneratorObject(Handle<JSFunction> function);
 
   Handle<JSArrayBuffer> NewJSArrayBuffer(
-      SharedFlag shared = SharedFlag::kNotShared);
+      SharedFlag shared = SharedFlag::kNotShared,
+      PretenureFlag pretenure = NOT_TENURED);
 
-  Handle<JSTypedArray> NewJSTypedArray(ExternalArrayType type);
+  Handle<JSTypedArray> NewJSTypedArray(ExternalArrayType type,
+                                       PretenureFlag pretenure = NOT_TENURED);
 
-  Handle<JSTypedArray> NewJSTypedArray(ElementsKind elements_kind);
+  Handle<JSTypedArray> NewJSTypedArray(ElementsKind elements_kind,
+                                       PretenureFlag pretenure = NOT_TENURED);
 
   // Creates a new JSTypedArray with the specified buffer.
   Handle<JSTypedArray> NewJSTypedArray(ExternalArrayType type,
                                        Handle<JSArrayBuffer> buffer,
-                                       size_t byte_offset, size_t length);
+                                       size_t byte_offset, size_t length,
+                                       PretenureFlag pretenure = NOT_TENURED);
 
   // Creates a new on-heap JSTypedArray.
   Handle<JSTypedArray> NewJSTypedArray(ElementsKind elements_kind,
-                                       size_t number_of_elements);
+                                       size_t number_of_elements,
+                                       PretenureFlag pretenure = NOT_TENURED);
 
   Handle<JSDataView> NewJSDataView();
   Handle<JSDataView> NewJSDataView(Handle<JSArrayBuffer> buffer,