[GOOGLE] More strict checking for call args

[Dehao Chen]

This patch makes more strict check of call args to make sure the
number of args match.

Bootstrapped and passed regression tests.

OK for google branches?

Thanks,
Dehao

Index: gcc/gimple-low.c
===================================================================
--- gcc/gimple-low.c (revision 199414)
+++ gcc/gimple-low.c (working copy)
@@ -254,9 +254,13 @@ gimple_check_call_args (gimple stmt, tree fndecl)
   && !fold_convertible_p (DECL_ARG_TYPE (p), arg)))
             return false;
  }
+      if (p != NULL)
+ return false;
     }
   else if (parms)
     {
+      if (list_length (parms) - nargs != 1)
+ return false;
       for (i = 0, p = parms; i < nargs; i++, p = TREE_CHAIN (p))
  {
   tree arg;