re PR c++/29016 (tree check: expected class 'expression', have 'exceptional' (baselink) in get_base_var, at ipa-utils.c:224)

	PR c++/29016
	* typeck.c (build_unary_op): Don't form an ADDR_EXPR around a
	BASELINK.
	PR c++/29016
	* g++.dg/init/ptrfn1.C: New test.

From-SVN: r117123