* ir.texi: Correct typo.
	* mangle.c (write_expression): Handle non-type template arguments
	with reference type.
	* method.c (build_overload_value): Likewise.
	* pt.c (convert_nontype_argument): Explicitly represent conversion
	to a reference with an ADDR_EXPR.
	(unify): Always unify arguments in left-to-right order.

From-SVN: r34396