Undo change from .call to %_CallFunction.
Undo change from .call to %_CallFunction.

The latter doesn't handle promotion of null/undefined to global object as
receiver for non-strict functions.

Review URL: http://codereview.chromium.org/6615013

git-svn-id: b158db1e4b4ab85d4c9e510fdef4b1e8c614b15b@7043 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

UniversalFuture/moosh,UniversalFuture/moosh,UniversalFuture/moosh,UniversalFuture/moosh