[Issue 17743] Type system hole: escaping inout delegates

[d-bugmail at puremagic.com]

https://issues.dlang.org/show_bug.cgi?id=17743

--- Comment #2 from anonymous4 <dfj1esp02 at sneakemail.com> ---
As I understand, it's due to decision that nested functions use inout qialifier
of the outer function. Then an easy way to fix this is to disallow conversion
of such nested function to inout-typed delegate.

--