2007-03-15  Douglas Gregor  <doug.gregor@gmail.com>

	* ptree.c (cxx_print_type): Use formatting markup for integers
	when printing template parameter index/level/orig level.
	(cxx_print_xnode): Ditto.
	* cp-tree.h (TEMPLATE_PARM_PARAMETER_PACK): Use TREE_LANG_FLAG_0.
	(struct template_parm_index_s): Remove the PARAMETER_PACK member.
	Make INDEX, LEVEL, and ORIG_LEVEL integers instead of
	HOST_WIDE_INTs.
	(struct saved_scope): Make X_PROCESSING_TEMPLATE_DECL an int,
	rather than a HOST_WIDE_INT.
	Turn X_PROCESSING_EXPLICIT_INSTANTIATION, SKIP_EVALUATION, and
	NEED_POP_FUNCTION_CONTEXT into bool bitfields; reorder fields for
	better bit-packing.
	(struct language_function): Make RETURNS_VALUE, RETURNS_NULL,
	RETURNS_ABNORMALLY, IN_FUNCTION_TRY_HANDLER, and
	IN_BASE_INITIALIZER bool bitfields.
	(struct cp_declarator): Make KIND a 4-bit field. Make
	PARAMETER_PACK_P a bool bitfield just after KIND.
	* pt.c (uses_parameter_packs): Destroy the pointer set.
	(make_pack_expansion): Ditto.
	(check_for_bare_parameter_packs): Ditto.
	* name-lookup.c (push_to_top_level): Make need_pop a bool value.

From-SVN: r122955