The number type information of results has to be also copied when
calling ToRegister with a fixed register as destination.

Also fix an unbound label and a missing CpuFeatures scope.

Review URL: http://codereview.chromium.org/987003

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@4155 ce2b1a6d-e550-0410-aec6-3dcde31c8c00