re PR lto/84105 (Segmentation fault in pp_tree_identifier() during LTO)

	PR lto/84105
	* tree-pretty-print.c (dump_generic_node): Handle a TYPE_NAME with
	an IDENTIFIER_NODE for FUNCTION_TYPE's.

From-SVN: r257228

gcc/ChangeLog

+2018-01-29  Aldy Hernandez  <aldyh@redhat.com>
+
+	PR lto/84105
+	* tree-pretty-print.c (dump_generic_node): Handle a TYPE_NAME with
+	an IDENTIFIER_NODE for FUNCTION_TYPE's.
+
 2018-01-31  Eric Botcazou  <ebotcazou@adacore.com>
 
 	Revert

gcc/tree-pretty-print.c

@@ -1822,7 +1822,9 @@ dump_generic_node (pretty_printer *pp, tree node, int spc, dump_flags_t flags,
 	    pp_string (pp, "<null method basetype>");
 	  pp_colon_colon (pp);
 	}
-      if (TYPE_NAME (node) && DECL_NAME (TYPE_NAME (node)))
+      if (TYPE_IDENTIFIER (node))
+	dump_generic_node (pp, TYPE_NAME (node), spc, flags, false);
+      else if (TYPE_NAME (node) && DECL_NAME (TYPE_NAME (node)))
 	dump_decl_name (pp, TYPE_NAME (node), flags);
       else if (flags & TDF_NOUID)
 	pp_printf (pp, "<Txxxx>");