Fix compile error with CLANG.

BUG=
R=bmeurer@chromium.org

Review URL: https://codereview.chromium.org/23475038

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@16685 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
Use trampoline or handlified JSObject::SetLocalPropertyIgnoreAttributes.

R=verwaest@chromium.org

Committed: http://code.google.com/p/v8/source/detail?r=16642

Review URL: https://codereview.chromium.org/24093002

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@16686 ce2b1a6d-e550-0410-aec6-3dcde31c8c00