When mangling a synthetic function declaration, we might not have
type-source information for its parameters.  Don't crash when
mangling them in the MS C++ ABI.  Patch by Timur Iskhodzhanov!

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@155879 91177308-0d34-0410-b5e6-96231b3b80d8
2 files changed