Fix handling of `all` shorthand with var() functions
Fix handling of `all` shorthand with var() functions

anthgur/servo,eddyb/servo,paulrouget/servo,dati91/servo,mattnenterprise/servo,splav/servo,upsuper/servo,notriddle/servo,anthgur/servo,KiChjang/servo,larsbergstrom/servo,saneyuki/servo,anthgur/servo,KiChjang/servo,pyfisch/servo,mbrubeck/servo,SimonSapin/servo,cbrewster/servo,SimonSapin/servo,DominoTree/servo,upsuper/servo,canaltinova/servo,pyfisch/servo,upsuper/servo,nnethercote/servo,thiagopnts/servo,peterjoel/servo,fiji-flo/servo,upsuper/servo,cbrewster/servo,nnethercote/servo,emilio/servo,dsandeephegde/servo,dsandeephegde/servo,peterjoel/servo,DominoTree/servo,pyfisch/servo,nnethercote/servo,splav/servo,rnestler/servo,larsbergstrom/servo,jimberlage/servo,fiji-flo/servo,emilio/servo,DominoTree/servo,larsbergstrom/servo,mbrubeck/servo,dati91/servo,DominoTree/servo,paulrouget/servo,emilio/servo,upsuper/servo,jimberlage/servo,dati91/servo,nnethercote/servo,eddyb/servo,sadmansk/servo,peterjoel/servo,dati91/servo,KiChjang/servo,DominoTree/servo,rnestler/servo,dati91/servo,CJ8664/servo,jimberlage/servo,anthgur/servo,splav/servo,upsuper/servo,paulrouget/servo,KiChjang/servo,fiji-flo/servo,CJ8664/servo,rnestler/servo,fiji-flo/servo,sadmansk/servo,SimonSapin/servo,sadmansk/servo,upsuper/servo,mattnenterprise/servo,saneyuki/servo,emilio/servo,larsbergstrom/servo,avadacatavra/servo,SimonSapin/servo,SimonSapin/servo,pyfisch/servo,splav/servo,thiagopnts/servo,DominoTree/servo,mattnenterprise/servo,canaltinova/servo,DominoTree/servo,cbrewster/servo,mbrubeck/servo,eddyb/servo,KiChjang/servo,nnethercote/servo,avadacatavra/servo,szeged/servo,paulrouget/servo,avadacatavra/servo,canaltinova/servo,DominoTree/servo,cbrewster/servo,emilio/servo,mattnenterprise/servo,ConnorGBrewster/servo,nnethercote/servo,thiagopnts/servo,sadmansk/servo,notriddle/servo,mattnenterprise/servo,KiChjang/servo,paulrouget/servo,larsbergstrom/servo,mattnenterprise/servo,peterjoel/servo,ConnorGBrewster/servo,ConnorGBrewster/servo,sadmansk/servo,larsbergstrom/servo,ConnorGBrewster/servo,pyfisch/servo,splav/servo,jimberlage/servo,canaltinova/servo,ConnorGBrewster/servo,jimberlage/servo,nnethercote/servo,CJ8664/servo,dati91/servo,rnestler/servo,saneyuki/servo,splav/servo,saneyuki/servo,pyfisch/servo,KiChjang/servo,peterjoel/servo,splav/servo,thiagopnts/servo,thiagopnts/servo,splav/servo,KiChjang/servo,saneyuki/servo,mbrubeck/servo,mbrubeck/servo,pyfisch/servo,eddyb/servo,dsandeephegde/servo,cbrewster/servo,emilio/servo,mattnenterprise/servo,nnethercote/servo,peterjoel/servo,avadacatavra/servo,avadacatavra/servo,jimberlage/servo,notriddle/servo,paulrouget/servo,szeged/servo,SimonSapin/servo,szeged/servo,notriddle/servo,notriddle/servo,jimberlage/servo,jimberlage/servo,emilio/servo,canaltinova/servo,KiChjang/servo,mbrubeck/servo,cbrewster/servo,notriddle/servo,eddyb/servo,fiji-flo/servo,ConnorGBrewster/servo,thiagopnts/servo,dati91/servo,DominoTree/servo,sadmansk/servo,CJ8664/servo,cbrewster/servo,rnestler/servo,avadacatavra/servo,canaltinova/servo,CJ8664/servo,szeged/servo,szeged/servo,canaltinova/servo,canaltinova/servo,mbrubeck/servo,mattnenterprise/servo,thiagopnts/servo,anthgur/servo,paulrouget/servo,szeged/servo,avadacatavra/servo,emilio/servo,fiji-flo/servo,rnestler/servo,avadacatavra/servo,larsbergstrom/servo,saneyuki/servo,sadmansk/servo,pyfisch/servo,larsbergstrom/servo,ConnorGBrewster/servo,peterjoel/servo,larsbergstrom/servo,nnethercote/servo,anthgur/servo,eddyb/servo,CJ8664/servo,fiji-flo/servo,anthgur/servo,eddyb/servo,dati91/servo,pyfisch/servo,szeged/servo,DominoTree/servo,szeged/servo,splav/servo,notriddle/servo,rnestler/servo,paulrouget/servo,dsandeephegde/servo,ConnorGBrewster/servo,pyfisch/servo,SimonSapin/servo,notriddle/servo,dsandeephegde/servo,larsbergstrom/servo,jimberlage/servo,cbrewster/servo,paulrouget/servo,dsandeephegde/servo,fiji-flo/servo,saneyuki/servo,saneyuki/servo,peterjoel/servo,saneyuki/servo,szeged/servo,dsandeephegde/servo,CJ8664/servo,dsandeephegde/servo,peterjoel/servo,eddyb/servo,emilio/servo,notriddle/servo,splav/servo,notriddle/servo,upsuper/servo,KiChjang/servo,rnestler/servo,mbrubeck/servo,SimonSapin/servo,paulrouget/servo,nnethercote/servo,peterjoel/servo,thiagopnts/servo,szeged/servo,CJ8664/servo,saneyuki/servo,anthgur/servo,sadmansk/servo,emilio/servo