re PR c++/34054 (ICE with parameter pack in return type)

re PR c++/34054 (ICE with parameter pack in return type)

	PR c++/34054
	PR c++/34056
	PR c++/34057
	PR c++/34058
	PR c++/34060
	* pt.c (find_parameter_packs_r): If ppd->set_packs_to_error,
	set to error_mark_node the outermost POINTER_TYPE to the pack if
	it is seen in a POINTER_TYPE.
	(push_template_decl_real): If check_for_bare_parameter_packs
	fails for function return type, set the return type to
	integer_type_node.  If check_for_bare_parameter_packs failed
	for non-function, return error_mark_node.

	* g++.dg/parse/crash36.C: Add another dg-error.
	* g++.dg/cpp0x/pr34054.C: New test.
	* g++.dg/cpp0x/pr34056.C: New test.
	* g++.dg/cpp0x/pr34057.C: New test.
	* g++.dg/cpp0x/pr34058.C: New test.
	* g++.dg/cpp0x/pr34060.C: New test.

From-SVN: r130152