cp:

	PR c++/3089
	* class.c (dfs_accumulate_vtbl_inits): Always walk down the
	hierarchy looking for primary bases for a ctor
	vtable. Recursively call oneself, if we meet our primary via
	this route and haven't met it yet via inheritance graph order.
testsuite:
	* g++.old-deja/g++.abi/vbase4.C: New test.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@43248 138bc75d-0d04-0410-961f-82ee72b054a4