Auto merge of #6504 - Ms2ger:workqueue-labeled-break, r=pcwalton
Auto merge of #6504 - Ms2ger:workqueue-labeled-break, r=pcwalton

Move back to using a labeled break in WorkQueue.

This was changed in 18a2050a64cd6f320cc59cb490a69b0e895f11d3; it appears to
work fine now.

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paulrouget/servo,runarberg/servo,SimonSapin/servo,rentongzhang/servo,dati91/servo,ryancanhelpyou/servo,paulrouget/servo,szeged/servo,nnethercote/servo,mbrubeck/servo,saneyuki/servo,mdibaiee/servo,fiji-flo/servo,fiji-flo/servo,tafia/servo,saratang/servo,nick-thompson/servo,nick-thompson/servo,saratang/servo,rentongzhang/servo,notriddle/servo,wartman4404/servo,larsbergstrom/servo,dagnir/servo,cbrewster/servo,tafia/servo,vks/servo,codemac/servo,paulrouget/servo,boghison/servo,walac/servo,splav/servo,mdibaiee/servo,jlegendary/servo,avadacatavra/servo,brendandahl/servo,nnethercote/servo,g-k/servo,notriddle/servo,cbrewster/servo,ConnorGBrewster/servo,aweinstock314/servo,zentner-kyle/servo,RenaudParis/servo,AnthonyBroadCrawford/servo,pyecs/servo,GyrosOfWar/servo,emilio/servo,KiChjang/servo,nnethercote/servo,paulrouget/servo,nrc/servo,tschneidereit/servo,upsuper/servo,g-k/servo,peterjoel/servo,huonw/servo,caldwell/servo,bjwbell/servo,nick-thompson/servo,notriddle/servo,sadmansk/servo,huonw/servo,saratang/servo,walac/servo,splav/servo,eddyb/servo,tafia/servo,meh/servo,rnestler/servo,fiji-flo/servo,zentner-kyle/servo,akosel/servo,CJ8664/servo,paulrouget/servo,nrc/servo,larsbergstrom/servo,avadacatavra/servo,saratang/servo,dagnir/servo,mbrubeck/servo,wartman4404/servo,kindersung/servo,akosel/servo,boghison/servo,jdramani/servo,dhananjay92/servo,anthgur/servo,jdramani/servo,DominoTree/servo,eddyb/servo,larsbergstrom/servo,mattnenterprise/servo,akosel/servo,pgonda/servo,tschneidereit/servo,SimonSapin/servo,deokjinkim/servo,RenaudParis/servo,nick-thompson/servo,canaltinova/servo,peterjoel/servo,GyrosOfWar/servo,pgonda/servo,aweinstock314/servo,huonw/servo,nrc/servo,runarberg/servo,mdibaiee/servo,aweinstock314/servo,RenaudParis/servo,cbrewster/servo,ConnorGBrewster/servo,ConnorGBrewster/servo,emilio/servo,meh/servo,A-deLuna/servo,mdibaiee/servo,codemac/servo,meh/servo,youprofit/servo,dhananjay92/servo,mdibaiee/servo,AnthonyBroadCrawford/servo,karlito40/servo,avadacatavra/servo,emilio/servo,zentner-kyle/servo,runarberg/servo,dagnir/servo,A-deLuna/servo,CJ8664/servo,rentongzhang/servo,boghison/servo,dati91/servo,upsuper/servo,thiagopnts/servo,dhananjay92/servo,notriddle/servo,g-k/servo,j3parker/servo,pyfisch/servo,CJ8664/servo,ConnorGBrewster/servo,saneyuki/servo,saneyuki/servo,larsbergstrom/servo,rnestler/servo,nnethercote/servo,mattnenterprise/servo,DominoTree/servo,sadmansk/servo,larsbergstrom/servo,youprofit/servo,SimonSapin/servo,dsandeephegde/servo,saneyuki/servo,anthgur/servo,WriterOfAlicrow/servo,tafia/servo,KiChjang/servo,emilio/servo,WriterOfAlicrow/servo,jlegendary/servo,kindersung/servo,tempbottle/servo,bjwbell/servo,kindersung/servo,youprofit/servo,RenaudParis/servo,boghison/servo,vks/servo,thiagopnts/servo,meh/servo,thiagopnts/servo,dsandeephegde/servo,pgonda/servo,tempbottle/servo,notriddle/servo,peterjoel/servo,tafia/servo,nerith/servo,meh/servo,walac/servo,eddyb/servo,jlegendary/servo,jimberlage/servo,szeged/servo,aidanhs/servo,jimberlage/servo,GyrosOfWar/servo,nnethercote/servo,WriterOfAlicrow/servo,eddyb/servo,brendandahl/servo,aweinstock314/servo,kindersung/servo,DominoTree/servo,KiChjang/servo,RenaudParis/servo,walac/servo,anthgur/servo,pyfisch/servo,zentner-kyle/servo,walac/servo,DominoTree/servo,zentner-kyle/servo,saneyuki/servo,codemac/servo,SimonSapin/servo,rnestler/servo,eddyb/servo,steveklabnik/servo,DominoTree/servo,brendandahl/servo,peterjoel/servo,saneyuki/servo,rnestler/servo,steveklabnik/servo,mattnenterprise/servo,sadmansk/servo,DominoTree/servo,tschneidereit/servo,jlegendary/servo,wartman4404/servo,thiagopnts/servo,GyrosOfWar/servo,vks/servo,jlegendary/servo,tschneidereit/servo,emilio/servo,GyrosOfWar/servo,tschneidereit/servo,splav/servo,wartman4404/servo,jimberlage/servo,larsbergstrom/servo,RenaudParis/servo,deokjinkim/servo,dati91/servo,canaltinova/servo,walac/servo,rnestler/servo,thiagopnts/servo,karlito40/servo,notriddle/servo,notriddle/servo,wartman4404/servo,tempbottle/servo,nrc/servo,dvberkel/servo,aidanhs/servo,deokjinkim/servo,s142857/servo,splav/servo,pyecs/servo,WriterOfAlicrow/servo,A-deLuna/servo,ConnorGBrewster/servo,nnethercote/servo,SimonSapin/servo,j3parker/servo,saratang/servo,huonw/servo,KiChjang/servo,ryancanhelpyou/servo,DominoTree/servo,GyrosOfWar/servo,nerith/servo,eddyb/servo,karlito40/servo,larsbergstrom/servo,caldwell/servo,pyecs/servo,upsuper/servo,dsandeephegde/servo,huonw/servo,nerith/servo,upsuper/servo,sadmansk/servo,splav/servo,caldwell/servo,huonw/servo,dati91/servo,canaltinova/servo,codemac/servo,s142857/servo,pyfisch/servo,DominoTree/servo,zentner-kyle/servo,s142857/servo,nerith/servo,avadacatavra/servo,jdramani/servo,codemac/servo,fiji-flo/servo,szeged/servo,pyecs/servo,upsuper/servo,szeged/servo,tafia/servo,saratang/servo,upsuper/servo,pyfisch/servo,emilio/servo,splav/servo,nick-thompson/servo,dati91/servo,larsbergstrom/servo,boghison/servo,eddyb/servo,j3parker/servo,nnethercote/servo,pyfisch/servo,deokjinkim/servo,s142857/servo,anthgur/servo,tafia/serv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