[PATCH,c++] introduce cp_build_function_call_nary

[Mark Mitchell]

Nathan Froyd wrote:

> 	* cp-tree.h (cp_build_function_call_nary): Declare.
> 	* typeck.c (cp_build_function_call_nary): Define.

I like this idea, but I think that instead of "nargs", a NULL-terminated
list of trees is a more robust way of expressing this interface.  A
NULL_TREE argument isn't valid, so I don't think that's ambiguous, and I
think it's easier to get:

  cp_build_function_call_nary (..., arg1, arg2, NULL_TREE);

right when you add in "arg3", then it is to remember to change the
number-of-arguments parameter.

OK with that change.

Thanks,

-- 
Mark Mitchell
CodeSourcery
mark@codesourcery.com
(650) 331-3385 x713