[Issue 19061] Specs for contracts don't include the changes brought by DIP 1009

[d-bugmail at puremagic.com]

https://issues.dlang.org/show_bug.cgi?id=19061
Issue 19061 depends on issue 19062, which changed state.

Issue 19062 Summary: Accepted grammar for DIP 1009 introduces the `InExpression` which already exists
https://issues.dlang.org/show_bug.cgi?id=19062

           What    |Removed                     |Added
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             Status|NEW                         |RESOLVED
         Resolution|---                         |FIXED

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