Clean up reserved word getter/setter parsing
Clean up reserved word getter/setter parsing

Also remove dead assignments and unused parameters.

tntim96/rhino-apigee,ashwinrayaprolu1984/rhino,tntim96/htmlunit-rhino-fork,swannodette/rhino,tntim96/rhino-jscover,swannodette/rhino,tntim96/rhino-apigee,swannodette/rhino,AlexTrotsenko/rhino,lv7777/egit_test,lv7777/egit_test,qhanam/rhino,Distrotech/rhino,rasmuserik/rhino,ashwinrayaprolu1984/rhino,Pilarbrist/rhino,lv7777/egit_test,lv7777/egit_test,tuchida/rhino,tejassaoji/RhinoCoarseTainting,ashwinrayaprolu1984/rhino,tuchida/rhino,sainaen/rhino,swannodette/rhino,Pilarbrist/rhino,Pilarbrist/rhino,ashwinrayaprolu1984/rhino,tuchida/rhino,tntim96/rhino-jscover-repackaged,tejassaoji/RhinoCoarseTainting,jsdoc3/rhino,ashwinrayaprolu1984/rhino,swannodette/rhino,qhanam/rhino,ashwinrayaprolu1984/rhino,tntim96/rhino-apigee,jsdoc3/rhino,AlexTrotsenko/rhino,tuchida/rhino,Angelfirenze/rhino,Angelfirenze/rhino,jsdoc3/rhino,Pilarbrist/rhino,sam/htmlunit-rhino-fork,lv7777/egit_test,qhanam/rhino,tejassaoji/RhinoCoarseTainting,sainaen/rhino,InstantWebP2P/rhino-android,Pilarbrist/rhino,sainaen/rhino,sam/htmlunit-rhino-fork,tuchida/rhino,tuchida/rhino,Distrotech/rhino,sainaen/rhino,sam/htmlunit-rhino-fork,AlexTrotsenko/rhino,tejassaoji/RhinoCoarseTainting,tejassaoji/RhinoCoarseTainting,qhanam/rhino,AlexTrotsenko/rhino,AlexTrotsenko/rhino,lv7777/egit_test,sam/htmlunit-rhino-fork,sainaen/rhino,AlexTrotsenko/rhino,tntim96/rhino-jscover,Angelfirenze/rhino,swannodette/rhino,AlexTrotsenko/rhino,lv7777/egit_test,Angelfirenze/rhino,Pilarbrist/rhino,ashwinrayaprolu1984/rhino,sainaen/rhino,Angelfirenze/rhino,tntim96/rhino-jscover-repackaged,rasmuserik/rhino,swannodette/rhino,Pilarbrist/rhino,sainaen/rhino,tntim96/htmlunit-rhino-fork,sam/htmlunit-rhino-fork,tuchida/rhino,InstantWebP2P/rhino-android,Angelfirenze/rhino,tejassaoji/RhinoCoarseTainting,sam/htmlunit-rhino-fork,tejassaoji/RhinoCoarseTainting,sam/htmlunit-rhino-fork,Angelfirenze/rhino