[Dodji Seketeli] Patch PR c++/45200

[Dodji Seketeli]

Jason Merrill <jason@redhat.com> writes:

> The change is OK, but the testcase looks over-reduced; apply1 isn't
> actually used at all.

It's true that apply1 is not used but it is useful to trigger the bug
because it has a different number of template parameters than struct
apply. E.g, removing apply1 or removing its last template parameter
makes the crash to vanish.

-- 
	Dodji