[Issue 22037] diagnostic: undefined identifier errors not suppressed when gagging

[d-bugmail at puremagic.com]

https://issues.dlang.org/show_bug.cgi?id=22037

Iain Buclaw <ibuclaw at gdcproject.org> changed:

           What    |Removed                     |Added
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           Severity|regression                  |major

--- Comment #1 from Iain Buclaw <ibuclaw at gdcproject.org> ---
After some bisecting, determined to not be a regression.

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