IRgen: Move BitField LValues to just hold a reference to the CGBitFieldInfo.
 - Unfortunately, this requires some horrible code in CGObjCMac which always
   allocats a CGBitFieldInfo because we don't currently build a proper layout
   for Objective-C classes. It needs to be cleaned up, but I don't want the
   bit-field cleanups to be blocked on that.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@100474 91177308-0d34-0410-b5e6-96231b3b80d8
5 files changed