decl.c (make_implicit_typename): Only change the type of a TYPENAME_TYPE.

	* decl.c (make_implicit_typename): Only change the type of a
	TYPENAME_TYPE.

From-SVN: r18668

gcc/cp/ChangeLog

+Wed Mar 18 12:41:43 1998  Jason Merrill  <jason@yorick.cygnus.com>
+
+	* decl.c (make_implicit_typename): Only change the type of a 
+	TYPENAME_TYPE.
+
 Wed Mar 18 10:09:51 1998  Mark Mitchell  <mmitchell@usa.net>
 
 	* semantics.c: New file, containing routines to perform the

gcc/cp/decl.c

@@ -4592,8 +4592,9 @@ make_implicit_typename (context, t)
     }
   else
     retval = make_typename_type (context, DECL_NAME (t));
-  
-  TREE_TYPE (retval) = TREE_TYPE (t);
+
+  if (TREE_CODE (retval) == TYPENAME_TYPE)
+    TREE_TYPE (retval) = TREE_TYPE (t);
   return retval;
 }