style: Add a fast path to each_anonymous_content_child.
style: Add a fast path to each_anonymous_content_child.

If we know that we don't have anon children it is pointless to go through FFI.

DominoTree/servo,canaltinova/servo,paulrouget/servo,upsuper/servo,paulrouget/servo,jimberlage/servo,emilio/servo,saneyuki/servo,KiChjang/servo,nnethercote/servo,DominoTree/servo,avadacatavra/servo,canaltinova/servo,larsbergstrom/servo,peterjoel/servo,sadmansk/servo,KiChjang/servo,sadmansk/servo,SimonSapin/servo,larsbergstrom/servo,nnethercote/servo,notriddle/servo,mbrubeck/servo,splav/servo,KiChjang/servo,splav/servo,pyfisch/servo,emilio/servo,pyfisch/servo,mattnenterprise/servo,nnethercote/servo,KiChjang/servo,SimonSapin/servo,splav/servo,emilio/servo,paulrouget/servo,saneyuki/servo,dati91/servo,splav/servo,upsuper/servo,SimonSapin/servo,peterjoel/servo,peterjoel/servo,sadmansk/servo,dati91/servo,jimberlage/servo,dati91/servo,szeged/servo,notriddle/servo,splav/servo,saneyuki/servo,paulrouget/servo,jimberlage/servo,cbrewster/servo,paulrouget/servo,mbrubeck/servo,avadacatavra/servo,avadacatavra/servo,pyfisch/servo,dati91/servo,szeged/servo,larsbergstrom/servo,jimberlage/servo,notriddle/servo,DominoTree/servo,avadacatavra/servo,ConnorGBrewster/servo,mattnenterprise/servo,larsbergstrom/servo,pyfisch/servo,sadmansk/servo,notriddle/servo,szeged/servo,mbrubeck/servo,sadmansk/servo,splav/servo,szeged/servo,szeged/servo,pyfisch/servo,saneyuki/servo,DominoTree/servo,paulrouget/servo,larsbergstrom/servo,upsuper/servo,mattnenterprise/servo,DominoTree/servo,peterjoel/servo,larsbergstrom/servo,paulrouget/servo,canaltinova/servo,notriddle/servo,ConnorGBrewster/servo,peterjoel/servo,mbrubeck/servo,saneyuki/servo,peterjoel/servo,mattnenterprise/servo,upsuper/servo,ConnorGBrewster/servo,nnethercote/servo,sadmansk/servo,mbrubeck/servo,nnethercote/servo,mattnenterprise/servo,DominoTree/servo,KiChjang/servo,upsuper/servo,pyfisch/servo,peterjoel/servo,szeged/servo,emilio/servo,larsbergstrom/servo,pyfisch/servo,pyfisch/servo,dati91/servo,cbrewster/servo,peterjoel/servo,canaltinova/servo,dati91/servo,ConnorGBrewster/servo,notriddle/servo,mattnenterprise/servo,paulrouget/servo,emilio/servo,splav/servo,ConnorGBrewster/servo,jimberlage/servo,mattnenterprise/servo,saneyuki/servo,nnethercote/servo,upsuper/servo,splav/servo,nnethercote/servo,peterjoel/servo,larsbergstrom/servo,mbrubeck/servo,notriddle/servo,notriddle/servo,avadacatavra/servo,emilio/servo,splav/servo,mbrubeck/servo,cbrewster/servo,ConnorGBrewster/servo,paulrouget/servo,avadacatavra/servo,dati91/servo,saneyuki/servo,cbrewster/servo,KiChjang/servo,jimberlage/servo,DominoTree/servo,DominoTree/servo,saneyuki/servo,cbrewster/servo,szeged/servo,dati91/servo,pyfisch/servo,notriddle/servo,saneyuki/servo,canaltinova/servo,KiChjang/servo,canaltinova/servo,upsuper/servo,emilio/servo,szeged/servo,saneyuki/servo,KiChjang/servo,notriddle/servo,canaltinova/servo,szeged/servo,SimonSapin/servo,larsbergstrom/servo,nnethercote/servo,ConnorGBrewster/servo,mattnenterprise/servo,avadacatavra/servo,SimonSapin/servo,cbrewster/servo,cbrewster/servo,jimberlage/servo,DominoTree/servo,peterjoel/servo,szeged/servo,nnethercote/servo,sadmansk/servo,KiChjang/servo,splav/servo,mbrubeck/servo,cbrewster/servo,upsuper/servo,jimberlage/servo,ConnorGBrewster/servo,pyfisch/servo,avadacatavra/servo,KiChjang/servo,SimonSapin/servo,emilio/servo,SimonSapin/servo,sadmansk/servo,paulrouget/servo,larsbergstrom/servo,DominoTree/servo,nnethercote/servo,canaltinova/servo,emilio/servo,SimonSapin/servo,emilio/servo,jimberlage/servo