Delayed template parsing is not supported by the AST serialization system yet, so turning it off.  This fixes a test breakage caused by r177336.

git-svn-id: http://llvm.org/svn/llvm-project/cfe/trunk@177655 91177308-0d34-0410-b5e6-96231b3b80d8
Avoid warnings from compilers that think you can drop off the end of a fully covered switch.

git-svn-id: http://llvm.org/svn/llvm-project/cfe/trunk@177656 91177308-0d34-0410-b5e6-96231b3b80d8
Remove unused variable.

git-svn-id: http://llvm.org/svn/llvm-project/cfe/trunk@177657 91177308-0d34-0410-b5e6-96231b3b80d8