[libclang] For a CXCursor_ObjCInstanceMethodDecl/CXCursor_ObjCClassMethodDecl cursor,
return from clang_getCursorLocation the start location of the method name.

rdar://11105223

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@153303 91177308-0d34-0410-b5e6-96231b3b80d8
14 files changed