ghc ../Test (without file extension) should work

This works:

ghc Test
ghc foo/Test

This doesn't work:

ghc ../Test

With file Test.hs just containing module Test where.

I have a fix.

Trac metadata

Trac field	Value
Version	8.0.1
Type	Bug
TypeOfFailure	OtherFailure
Priority	normal
Resolution	Unresolved
Component	Driver
Test case
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