[Issue 19493] compiler crash when trying to format invalid contracts

[d-bugmail at puremagic.com]

https://issues.dlang.org/show_bug.cgi?id=19493

Basile-z <b2.temp at gmx.com> changed:

           What    |Removed                     |Added
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           Keywords|                            |ice
         Resolution|INVALID                     |WORKSFORME

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