[Issue 15956] Incorrect value inside enum using simd vectors, weird tym errors, and weird if(true) {} partial solution.

[d-bugmail at puremagic.com]

https://issues.dlang.org/show_bug.cgi?id=15956

joeks at mail.de changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |joeks at mail.de
           Severity|major                       |critical

--