[Issue 14835] Constant folding should not affect front end flow analysis

[d-bugmail at puremagic.com]

https://issues.dlang.org/show_bug.cgi?id=14835

--- Comment #13 from Dlang Bot <dlang-bot at dlang.rocks> ---
@adamdruppe updated dlang/dmd pull request #15568 "make D great again" fixing
this issue:

- Fix 10532, 14835, 20522 by adding test cases

https://github.com/dlang/dmd/pull/15568

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