[Issue 23068] New: [betterC] BetterC does not respect -checkaction=halt

[d-bugmail at puremagic.com]

https://issues.dlang.org/show_bug.cgi?id=23068

          Issue ID: 23068
           Summary: [betterC] BetterC does not respect -checkaction=halt
           Product: D
           Version: D2
          Hardware: All
                OS: All
            Status: NEW
          Severity: normal
          Priority: P1
         Component: dmd
          Assignee: nobody at puremagic.com
          Reporter: mrsmith33 at yandex.ru

Both dmd and ldc try to call `_assert` when -checkaction=halt and -betterC
flags are provided. Without -betterC flag, they correctly generate ud2
instruction.

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