Be a little more careful when trying to extract a TypeDecl from a enum/class/struct/union specifier; in invalid code, we may also see ClassTemplateDecls.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@86171 91177308-0d34-0410-b5e6-96231b3b80d8
2 files changed