* go-backend.c: #include "diagnostics.h".
	(saw_errors): New function.
	* go-c.h (saw_errors): Declare.
	* Make-lang.in (GO_OBJS): Remove go/gogo-tree.o.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@209968 138bc75d-0d04-0410-961f-82ee72b054a4