Expose the following functions:
 - clang_getTypedefName
 - clang_getAddressSpace

Patch by Simon Perretta.

Differential Revision: https://reviews.llvm.org/D33598


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@304978 91177308-0d34-0410-b5e6-96231b3b80d8