Objective-C decl scopes

This moves built-in Objective-C types up the scope chains to where they can be replaced by versions included from the runtime library's headers.

David

scope.diff (5.17 KB)

Applied:
http://lists.cs.uiuc.edu/pipermail/cfe-commits/Week-of-Mon-20080616/006206.html

Please include testcases with your patches so we know why they are good and so the change doesn't regress in the future. Thanks David!

-Chris