[Issue 21146] New: No introspection information on whether a class is COM or not

[d-bugmail at puremagic.com]

https://issues.dlang.org/show_bug.cgi?id=21146

          Issue ID: 21146
           Summary: No introspection information on whether a class is COM
                    or not
           Product: D
           Version: D2
          Hardware: All
                OS: All
            Status: NEW
          Severity: enhancement
          Priority: P1
         Component: dmd
          Assignee: nobody at puremagic.com
          Reporter: andrei at erdani.com

This info is only available magically through typeid(). Should be a __trait.

This blocks https://github.com/dlang/druntime/pull/3174.

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