class.c (dfs_unshared_virtual_bases): Add ATTRIBUTE_UNUSED.

class.c (dfs_unshared_virtual_bases): Add ATTRIBUTE_UNUSED.

cp:
	* class.c (dfs_unshared_virtual_bases): Add ATTRIBUTE_UNUSED.
	(layout_empty_base): Return at end flag.
	(build_base_field): Likewise.
	(build_base_fields): Likewise.
	(layout_virtual_bases): Don't add 1 to eoc value.
	(end_of_class): Use full size for empty bases.
	(layout_class_type): Clear CLASSNEARLY_EMPTY_P if we appended
	empty bases. Don't add 1 to eoc value. Only add trailing padding
	if we're an empty class with no empty bases.
	(dump_class_hierarchy): Dump size and alignment.
testsuite:
	* g++.old-deja/g++.abi/empty2.C: New test.
	* g++.old-deja/g++.abi/empty3.C: New test.

From-SVN: r41460