ref param mismatch --> segfault

[bearophile]

spir:

> Certainly ref qualifiers should be checked, 
> shouldn't they? The situation indeed is somewhat special here.
> 
> Foo getFoo(Token[] tokens, ref uint index)
> {...}
> Term[] getTerms (Term) (Term function (Token[], uint) parseFunc, Token[] tokens)
> {...}
> void main()
> {
>      Foo[] foos = getTerms!(Foo)(&getFoo, s);	# ==> segfault
> }

Please, create a very small but complete program that shows the problem :-) It will go to Bugzilla.

Bye,
bearophile