for  gcc/ChangeLog

	* dumpfile.h (TDF_COMPARE_DEBUG): New.
	* final.c (rest_of_clean_state): Set it for the
	-fcompare-debug dump.
	* tree-pretty-print.c (dump_generic_node): Omit OBJ_TYPE_REF
	class when TDF_COMPARE_DEBUG is set.

From-SVN: r254751