[V8] Rename add{Node,Object}ToGroup() to add{Node,Object}WrapperToGroup()
https://bugs.webkit.org/show_bug.cgi?id=110404

Reviewed by Adam Barth.

The current function name is confusing
(See discussion in bug 110396). We should rename the functions
so that it becomes clear that "Node"/"Object" refers to a type
of a wrapper in the second argument.

No tests. No change in behavior.

* bindings/v8/V8GCController.cpp:
(WebCore::WrapperGrouper::addObjectWrapperToGroup):
(WebCore::WrapperGrouper::addNodeWrapperToGroup):


git-svn-id: http://svn.webkit.org/repository/webkit/trunk@143636 268f45cc-cd09-0410-ab3c-d52691b4dbfc