[Issue 19637] Add a pre-condition to "in" and contains()

[d-bugmail at puremagic.com]

https://issues.dlang.org/show_bug.cgi?id=19637

Victor Porton <porton at narod.ru> changed:

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

--- Comment #2 from Victor Porton <porton at narod.ru> ---
I have not noticed that contains() is a member of SortedRange.

So, you are right, I am closing the bug.

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