re PR c++/34051 (ICE in dependent_type_p with variadic templates)

re PR c++/34051 (ICE in dependent_type_p with variadic templates)

2008-01-15  Douglas Gregor  <doug.gregor@gmail.com>

	PR c++/34051
	PR c++/34055
	PR c++/34102
	PR c++/34103
	* typeck.c (check_return_expr): If there are bare parameter packs
	in the return value, set it to error_mark_node.
	* tree.c (cp_walk_subtrees): Walk USING_DECL nodes.
	* pt.c (find_parameter_packs_r): Look at the type of
	IDENTIFIER_NODEs (e.g., for user-defined conversions).
	(check_for_bare_parameter_packs): Flip the result: now returns
	TRUE when there were bare parameter packs, FALSE otherwise.
	(push_template_decl_real): Deal with flipped result of
	check_for_bare_parameter_packs.
	* semantics.c (finish_cond): If there are bare parameter packs in
	the conditional, set it to error_mark_node.
	(finish_expr_stmt): If there are bare parameter packs in the
	expression, set it to error_mark_node.
	(finish_for_expr): Ditto.
	(finish_switch_cond): If there are bare parameter packs in
	the conditional, set it to error_mark_node.
	(finish_mem_initializers): If there are bare parameter packs in
	the member initializer, set it to error_mark_node.
	(finish_member_declaration): Check the attributes of the
	declaration for bare parameter packs, and remove the attributes if
	any have bare parameter packs.
	* parser.c (cp_parser_using_declaration): Check the using
	declaration for bare parameter packs.
	(cp_parser_base_clause): If there are bare parameter packs in a
	base specifier, don't add it to the chain.

2008-01-15  Douglas Gregor  <doug.gregor@gmail.com>

	PR c++/34051
	PR c++/34055
	PR c++/34102
	PR c++/34103
	* g++.dg/cpp0x/vt-34051-2.C: New.
	* g++.dg/cpp0x/vt-34102.C: New.
	* g++.dg/cpp0x/vt-34051.C: New.
	* g++.dg/cpp0x/vt-34055.C: New.
	* g++.dg/cpp0x/vt-34103.C: New.

From-SVN: r131547