warn-access: Fix up warning_at arguments

A warning regression fix I'm about to post warns (and breaks bootstrap due
to that) on the following spot.  Seems it is a copy and paste from
earlier code that mentions the %qD variable instead of talking about
unnamed temporary.

2022-01-21  Jakub Jelinek  <jakub@redhat.com>

	* gimple-ssa-warn-access.cc (pass_waccess::warn_invalid_pointer):
	Avoid passing var to warning_at when the format string doesn't
	refer to it.
diff --git a/gcc/gimple-ssa-warn-access.cc b/gcc/gimple-ssa-warn-access.cc
index c36cd5d..8bc33ee 100644
--- a/gcc/gimple-ssa-warn-access.cc
+++ b/gcc/gimple-ssa-warn-access.cc
@@ -3953,15 +3953,14 @@
 			    "may be used")
 		       : G_("using dangling pointer %qE to an unnamed "
 			    "temporary")),
-		      ref, var))
+		      ref))
       || (!ref
 	  && warning_at (use_loc, OPT_Wdangling_pointer_,
 			 (maybe
 			  ? G_("dangling pointer to an unnamed temporary "
 			       "may be used")
 			  : G_("using a dangling pointer to an unnamed "
-			       "temporary")),
-			 var)))
+			       "temporary")))))
     {
       inform (DECL_SOURCE_LOCATION (var),
 	      "unnamed temporary defined here");