Replace compLocDecl with less_first.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@189170 91177308-0d34-0410-b5e6-96231b3b80d8
Add missing includes.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@189171 91177308-0d34-0410-b5e6-96231b3b80d8
This wasn't headers, just missing namespaces.

/me bows head in shame.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@189172 91177308-0d34-0410-b5e6-96231b3b80d8