Adjust fix for PR c++/66786

gcc/cp/ChangeLog:

	PR c++/66786
	* pt.c (get_template_info): Handle PARM_DECL.
	(template_class_depth): Check DECL_P instead of
	VAR_OR_FUNCTION_DECL_P.

From-SVN: r234038

gcc/cp/ChangeLog

+2016-03-07  Patrick Palka  <ppalka@gcc.gnu.org>
+
+	PR c++/66786
+	* pt.c (get_template_info): Handle PARM_DECL.
+	(template_class_depth): Check DECL_P instead of
+	VAR_OR_FUNCTION_DECL_P.
+
 2016-03-05  Jason Merrill  <jason@redhat.com>
 
 	PR c++/67364

gcc/cp/pt.c

@@ -330,7 +330,8 @@ get_template_info (const_tree t)
   if (!t || t == error_mark_node)
     return NULL;
 
-  if (TREE_CODE (t) == NAMESPACE_DECL)
+  if (TREE_CODE (t) == NAMESPACE_DECL
+      || TREE_CODE (t) == PARM_DECL)
     return NULL;
 
   if (DECL_P (t) && DECL_LANG_SPECIFIC (t))
@@ -378,7 +379,7 @@ template_class_depth (tree type)
 	  && uses_template_parms (INNERMOST_TEMPLATE_ARGS (TI_ARGS (tinfo))))
 	++depth;
 
-      if (VAR_OR_FUNCTION_DECL_P (type))
+      if (DECL_P (type))
 	type = CP_DECL_CONTEXT (type);
       else if (LAMBDA_TYPE_P (type))
 	type = LAMBDA_TYPE_EXTRA_SCOPE (type);