When checking for name collision between a tag and a previously defined namespace, the collision occured even when the tag was in a different nested scope.
Fix it by taking into account the scope when checking for namespace-tag name collisions.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@53667 91177308-0d34-0410-b5e6-96231b3b80d8
2 files changed