PR c++/44587
	* pt.c (has_value_dependent_address): New.
	(value_dependent_expression_p): Check it.
	(convert_nontype_argument): Likewise.  Call decay_conversion before
	folding if we want a pointer.
	* semantics.c (finish_id_expression): Don't add SCOPE_REF if the
	scope is the current instantiation.

From-SVN: r161559