Fix AST-matcher descendant visiting for Types, TypeLocs and NestedNamespecifierLocs.

The RecursiveASTVisitor assumes that any given Traverse-method can be called with a NULL-node. So the subclass needs to handle these appropriately.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@167850 91177308-0d34-0410-b5e6-96231b3b80d8
1 file changed