Auto merge of #6604 - Ms2ger:idmap-debug, r=jdm
Auto merge of #6604 - Ms2ger:idmap-debug, r=jdm

Add debug logging to register_named_element and unregister_named_element.

I found them helpful; I imagine others might as well.

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