cp-tree.h (struct cp_evaluated): New.

cp-tree.h (struct cp_evaluated): New.

	* cp-tree.h (struct cp_evaluated): New.

This patch simplifies the saving/clearing/restoring of
cp_unevaluated_operand and c_inhibit_evaluation_warnings in the presence of
mid-block returns.

	* init.c (get_nsdmi): Use it.
	* parser.c (cp_parser_enclosed_template_argument_list): Use it.
	* pt.c (coerce_template_parms, tsubst_aggr_type): Use it.

From-SVN: r266051