[Issue 13397] allow postfix function attributes like 'safe', 'system' and so on without '@'

[via Digitalmars-d-bugs]

https://issues.dlang.org/show_bug.cgi?id=13397

--- Comment #3 from Ketmar Dark <ket...@ketmar.no-ip.org> ---
Created attachment 1396
  --> https://issues.dlang.org/attachment.cgi?id=1396&action=edit
this must compile

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