GitLab

	* dwarf2out.c (reference_to_unused): Ask cgraph for functions 
	availablility; add more sanity checking; ask varpool only about
	VAR_DECL.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@123358 138bc75d-0d04-0410-961f-82ee72b054a4