[Issue 22792] Wrong inference of opApply

[d-bugmail at puremagic.com]

https://issues.dlang.org/show_bug.cgi?id=22792

moonlightsentinel at disroot.org changed:

           What    |Removed                     |Added
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                 CC|                            |moonlightsentinel at disroot.o
                   |                            |rg

--- Comment #1 from moonlightsentinel at disroot.org ---
> The function on the const one that matches better should be called.

Neither of the string opApply's is an exact match due to the const missmatch on
`this` or the delegate parameter => "match with implicit conversions". Partial
ordering then selects the mutable overload because it is "more specialized"
(cannot be called by the const overload).

Not sure why the int overloads expose a different behaviour.

See https://dlang.org/spec/function.html#function-overloading

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