PR debug/39563

	PR debug/39563
	* c-decl.c (struct c_binding): Add locus field.
	(bind): Add locus argument, set locus field from it.
	(pop_scope): For b->nested VAR_DECL or FUNCTION_DECL,
	add a DECL_EXTERNAL copy of b->decl to current BLOCK_VARS.
	(push_file_scope, pushtag, pushdecl, pushdecl_top_level,
	implicitly_declare, undeclared_variable, lookup_label,
	declare_label, c_make_fname_decl, c_builtin_function,
	c_builtin_function_ext_scope, store_parm_decls_newstyle): Adjust
	bind callers.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@145293 138bc75d-0d04-0410-961f-82ee72b054a4