[Issue 23497] Erroneous escape reference to parameter error.

[d-bugmail at puremagic.com]

https://issues.dlang.org/show_bug.cgi?id=23497

--- Comment #5 from mhh <maxhaton at gmail.com> ---
Yeah (I forgot to add more detail), it's broken. Something in the in block
seems to make it think it should be noisy. Very hard to bisect because of the
druntime merge.

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