Add a new FFI to convert PropertyDeclarationBlock into nsTArray<RefPtr<RawServoAnimationValue>>.
Add a new FFI to convert PropertyDeclarationBlock into nsTArray<RefPtr<RawServoAnimationValue>>.

With this function we can get multiple RawServoAnimationValue(s) for shorthand
properties.

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