...1) Missing `scope` storage class specifiers on `delegate` function arguments. This can be chalked down...

...array.Array!(dmd.dsymbol.Dsymbol).Array*,
void delegate(dmd.dsymbol.Dsymbol)) [0x5595075fdc3f]
src/dmd/toobj...

...auto oddNumbers(T)(T[] a) {
    return delegate int(int delegate(ref T) dg) {
      foreach (x...

...What    |Removed                     |Added
----------------------------------------------------------------------------
            Summary|ref delegate no longer      |ref delegate literal no
                   |implicitly converts to...

...assert:  `is(int delegate() pure nothrow @nogc ref
return @safe == int delegate() pure nothrow @nogc...

...expression `&g` of type `int
delegate() ref return` to `int delegate() ref`
bug.d(10...

https://issues.dlang.org/show_bug.cgi?id=24265

Adam D. Ruppe <destructionator@gmail.com...

https://issues.dlang.org/show_bug.cgi?id=24265

--- Comment #2 from Paul Backus <snarwin...

...that `ref int delegate() return` does not convert to `ref int delegate()`, but the compiler...

...of type
int delegate() pure nothrow @nogc ref @safe` to `int delegate() ref`
refdg.d...