[Issue 16969] [backend] add an assembly writer

[via Digitalmars-d-bugs]

https://issues.dlang.org/show_bug.cgi?id=16969

b2.temp at gmx.com changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
            Summary|[backend] add an assemby    |[backend] add an assembly
                   |writer                      |writer

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