Auto merge of #12957 - emilio:stylo-pseudos, r=bholley
Auto merge of #12957 - emilio:stylo-pseudos, r=bholley

stylo: Don't calculate restyle damage on text nodes

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- [x] `./mach build -d` does not report any errors
- [x] `./mach test-tidy` does not report any errors

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- [x] There are tests for these changes (the Servo-side, that is)

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