Bug 23738 – A function accepting an alias of a type member requires static

Consider the following complete file: ```d struct S { int t; } static void foo(alias F)() { } void bar(alias F)() { } void main() { foo!(S.t); bar!(S.t); // Error: need `this` for `bar` of type `pure nothrow @nogc @safe void()` } ``` The call to `foo` succeeds, whereas the call to `bar` fails. The `static` storage class for a function at module level should be a no-op, but somehow it's affecting compilation. I believe both should succeed (taking an alias to a member without actually using the member, e.g. for introspection, is valid), though it's also worth investigating why `static` affects this function. See relevant thread, apparently an unreported bug since 2013: https://forum.dlang.org/post/[email protected]

*** This issue has been marked as a duplicate of issue 17435 ***