[Issue 16325] Provide a construct for a source file to determine where it lives on the file system.

[via Digitalmars-d-bugs]

https://issues.dlang.org/show_bug.cgi?id=16325

--- Comment #1 from Jonathan Marler <johnnymarler at gmail.com> ---
Was implemented here: https://github.com/dlang/dmd/pull/5959

Adds a new special compiler trait __FILE_FULL_PATH__ that reduces to the
absolute path of the current source file.

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