[Issue 20391] [REG 2.089] DMD compile times increased by 40%

[d-bugmail at puremagic.com]

https://issues.dlang.org/show_bug.cgi?id=20391

--- Comment #2 from GoaLitiuM <goalitium at dissues.mail.kapsi.fi> ---
It looks like the official builds are compiled with ENABLE_DEBUG=1, which also
explains why my own DMD built DMD builds are faster too (~6 seconds with DMD32,
~7 seconds with DMD64).

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