* Makefile.in, NXConstStr.m, Object.m, Protocol.m, archive.c,
	class.c, encoding.c, gc.c, objc/NXConstStr.h, objc/Object.h,
	objc/Protocol.h, objc/encoding.h, objc/hash.h, objc/objc-api.h,
	objc/objc-list.h, objc/objc.h, ocjc/runtime.h, objc/sarray.h,
	objc/thr.h, objc/typedstream.h: Replace "GNU CC" with "GCC".


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@67131 138bc75d-0d04-0410-961f-82ee72b054a4