fix a "does not name a type" bug in VASTContext.h

Hi all,
I find a bug in the VASTContext.h of the latest clang. I fixed it and commit a patch for it. As follows:

From 447d31176b513a03b253eb25ef314c2a3c0e428a Mon Sep 17 00:00:00 2001

0001-fix-a-does-not-name-a-type-bug-in-VASTContext.h.patch (935 Bytes)

Can you "svn up" your llvm and clang sources and check if you are
still having issues?