* ipa-devirt.c (odr_subtypes_equivalent_p): Fix formating.
	(compare_virtual_tables): Be smarter about skipping typeinfos;
	do sane output on virtual table table mismatch.
	(warn_odr): Be ready for forward declarations of enums;
	output sane info on base mismatch and virtual table mismatch.
	(add_type_duplicate): Fix code choosing prevailing type; do not ICE
	when only one type is polymorphic.
	(get_odr_type): Fix hashtable corruption.
	(dump_odr_type): Dump mangled names.

From-SVN: r220790