Fix PR c++/41785

gcc/cp/ChangeLog:

	PR c++/41785
	* pt.c (template_args_equal): Handle comparison of
	an ARGUMENT_PACK_SELECT node with the arguments node it selects into.
	* cp-tree.def: Fix a typo in the description of TYPE_PACK_EXPANSION.

gcc/testsuite/ChangeLog:
	PR c++/41785
	* gcc/testsuite/g++.dg/cpp0x/variadic96.C: New test.

From-SVN: r153564