[Issue 15585] New: VRP incorrectly assumes that out-of-range dchar values don't exist

[via Digitalmars-d-bugs]

https://issues.dlang.org/show_bug.cgi?id=15585

          Issue ID: 15585
           Summary: VRP incorrectly assumes that out-of-range dchar values
                    don't exist
           Product: D
           Version: D2
          Hardware: x86_64
                OS: Linux
            Status: NEW
          Severity: normal
          Priority: P1
         Component: dmd
          Assignee: nobody at puremagic.com
          Reporter: thomas.bockman at gmail.com

This issue doesn't currently have much in the way of visible symptoms, but it
will as VRP gets smarter in other ways:
    https://github.com/D-Programming-Language/dmd/pull/5229

Fixing this was been pre-approved by Walter Bright on the forums (although
there are other aspects of the above PR which are still under review):
    http://forum.dlang.org/post/oionrfexehapzicgpbrw@forum.dlang.org

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