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
diff --git a/lib/CodeGen/CGObjCRuntime.h b/lib/CodeGen/CGObjCRuntime.h
index b781940..e478394 100644
--- a/lib/CodeGen/CGObjCRuntime.h
+++ b/lib/CodeGen/CGObjCRuntime.h
@@ -61,12 +61,11 @@
 
 /// Implements runtime-specific code generation functions.
 class CGObjCRuntime {
-public:
+protected:
   // Utility functions for unified ivar access. These need to
   // eventually be folded into other places (the structure layout
   // code).
 
-protected:
   /// Compute an offset to the given ivar, suitable for passing to
   /// EmitValueForIvarAtOffset.  Note that the correct handling of
   /// bit-fields is carefully coordinated by these two, use caution!