[Issue 20418] New: Unittest failure in bitarray.d on Win32

[d-bugmail at puremagic.com]

https://issues.dlang.org/show_bug.cgi?id=20418

          Issue ID: 20418
           Summary: Unittest failure in bitarray.d on Win32
           Product: D
           Version: D2
          Hardware: All
                OS: Windows
            Status: NEW
          Severity: regression
          Priority: P1
         Component: dmd
          Assignee: nobody at puremagic.com
          Reporter: moonlightsentinel at disroot.org

Running DMD master with unittests enabled fails on Win32:

core.exception.AssertError at dmd\root\bitarray.d(170): unittest failure
----------------
0x00742E89 in _d_unittestp
0x006548CC in void dmd.root.bitarray.__modtest()
0x0074AF3A in int
core.runtime.runModuleUnitTests().__foreachbody1(object.ModuleInfo*)
1/21 unittests FAILED

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