* semantics.c (finish_stmt_expr): Fix typo in comment.
	* tree.c (search_tree): Handle EXIT_EXPR, LOOP_EXPR.
	(mapcar): Likewise.
	* init.c (build_vec_delete_1): Make the children of a permanent
	BIND_EXPR permanent.
	* pt.c (register_specialization): Don't register a specialization
	more than once.

From-SVN: r28781