[Issue 18750] [Tracker] everything wrong with code generation for bt instruction

[d-bugmail at puremagic.com]

https://issues.dlang.org/show_bug.cgi?id=18750
Issue 18750 depends on issue 18794, which changed state.

Issue 18794 Summary: Compiling with -O causes runtime segfault
https://issues.dlang.org/show_bug.cgi?id=18794

           What    |Removed                     |Added
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             Status|NEW                         |RESOLVED
         Resolution|---                         |FIXED

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