[Issue 16798] Extend -Ipath switch to -Imodule=path so path heirarchy doesn't have to match package heirarchy

[via Digitalmars-d-bugs]

https://issues.dlang.org/show_bug.cgi?id=16798

--- Comment #1 from Walter Bright <bugzilla at digitalmars.com> ---
https://github.com/dlang/dmd/pull/6286

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