cp/
	PR c++/28705
	* semantics.c (finish_call_expr): Add assert.
	* name-lookup.c (lookup_arg_dependent): Check we found an overload
	or an object.
testsuite/
	PR c++/28705
	* g++.dg/lookup/koenig5.C: New.
	* g++.dg/template/crash56.C: New.

From-SVN: r116638