[Issue 16499] Misleading error message for 'in' operator with wrong argument

[via Digitalmars-d-bugs]

https://issues.dlang.org/show_bug.cgi?id=16499

--- Comment #3 from github-bugzilla at puremagic.com ---
Commit pushed to stable at https://github.com/dlang/dmd

https://github.com/dlang/dmd/commit/573ab09aac2e59225e86440702a3769761734f15
Merge pull request #6140 from yshui/master

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