What should delegates with qualifiers mean?

[Nicholas Wilson]

On Wednesday, 24 March 2021 at 19:23:15 UTC, Q. Schroll wrote:
> As per the grammar, a delegate can carry member function 
> attributes, including qualifiers (const, immutable) that 
> seemingly apply to the context. The spec does not speak about 
> this.

don't forget shared! see
https://issues.dlang.org/show_bug.cgi?id=21737
https://issues.dlang.org/show_bug.cgi?id=19984