[Issue 21471] Backend assertion triggered with `-checkation=context` and `-inline`

[d-bugmail at puremagic.com]

https://issues.dlang.org/show_bug.cgi?id=21471

--- Comment #3 from moonlightsentinel at disroot.org ---
(In reply to moonlightsentinel from comment #2)
> This would also solve problems like this:

Reported as https://issues.dlang.org/show_bug.cgi?id=21598

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