[Issue 24690] New: Generated symbols should not end in .di file

[d-bugmail at puremagic.com]

https://issues.dlang.org/show_bug.cgi?id=24690

          Issue ID: 24690
           Summary: Generated symbols should not end in .di file
           Product: D
           Version: D2
          Hardware: All
                OS: All
            Status: NEW
          Severity: normal
          Priority: P1
         Component: dmd
          Assignee: nobody at puremagic.com
          Reporter: alphaglosined at gmail.com

Generated symbols, such as template instances should be marked as to not be
shown in di files (except for -vcg-ast).

This can be set on the Declaration class using the ``hidden`` bitflag
``adFlags``.

This is one of the stepping stones towards moving the .di generator after
semantic to enable inferred attributes outputting.

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