Revert "re-disable ghc-imported-from (#1315)"
Revert "re-disable ghc-imported-from (#1315)"

This reverts commit 6e05d0b11107dec87785cb4afce5418f30fbeadb.

mgajda/stackage,mrkkrp/stackage,agrafix/stackage,jaspervdj/stackage,clinty/stackage,Gabriel439/stackage,Shimuuar/stackage,ygale/stackage,asr/stackage,Daniel-Diaz/stackage,int-index/stackage,peti/stackage,wereHamster/stackage,k0ral/stackage,nomeata/stackage,christiaanb/stackage,codedmart/stackage,DanielG/stackage,lwm/stackage,judah/stackage,bartavelle/stackage,brendanhay/stackage,phadej/stackage,mstksg/stackage,iand675/stackage,simonmichael/stackage,michalkonecny/stackage,creichert/stackage,phaazon/stackage,l29ah/stackage,fpco/stackage,fimad/stackage,spencerjanssen/stackage,athanclark/stackage,stackbuilders/stackage,garetxe/stackage,GregorySchwartz/stackage,marcinmrotek/stackage,alanz/stackage,soenkehahn/stackage,jonschoning/stackage,massysett/stackage,ethercrow/stackage