Fix set-up of intrinsic's 'constructor' properties

Looks so easy...

R=mstarzinger@chromium.org
BUG=229445

Review URL: https://codereview.chromium.org/13880007

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@14229 ce2b1a6d-e550-0410-aec6-3dcde31c8c00