(dbxout_type): Make just cross refs for struct types

with TYPE_DECLs marked with DECL_IGNORED_P.

From-SVN: r4127

gcc/dbxout.c

@@ -1104,11 +1104,12 @@ dbxout_type (type, full, show_arg_types)
 
 	/* Output a structure type.  */
 	if ((TYPE_NAME (type) != 0
-#if 0 /* Tiemann says this creates output tha "confuses GDB".
-	 Too bad the info is so vague.  Hope this doesn't lose.  */
+	     /* Long ago, Tiemann said this creates output that "confuses GDB".
+		In April 93, mrs@cygnus.com said there is no such problem.
+		The type decls made automatically by struct specifiers
+		are marked with DECL_IGNORED_P in C++.  */
 	     && ! (TREE_CODE (TYPE_NAME (type)) == TYPE_DECL
 		   && DECL_IGNORED_P (TYPE_NAME (type)))
-#endif
 	     && !full)
 	    || TYPE_SIZE (type) == 0
 	    /* No way in DBX fmt to describe a variable size.  */