Auto merge of #17757 - bholley:downgrade_assertion, r=bholley
Auto merge of #17757 - bholley:downgrade_assertion, r=bholley

Stop aborting release builds if we've missed invalidations before calling Servo_ResolveStyle

A lot of people are hitting this in [1]. I think having style (just potentially out-of-date) is less likely to cause weird crashes than failing to style the element entirely, so it's not worth inflicting this level of crashiness on the dogfood population.

[1] https://bugzilla.mozilla.org/show_bug.cgi?id=1381475

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