add a common base class "PointerLikeType" for PointerType and ReferenceType,
allowing them to be treated the same in some contexts.  A suggestion for a
better name is welcome :)


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@49100 91177308-0d34-0410-b5e6-96231b3b80d8
6 files changed