Added a unit test for equality operator on vars
Added a unit test for equality operator on vars

gchauras/Halide,damienfir/Halide,kenkuang1213/Halide,damienfir/Halide,adasworks/Halide,gchauras/Halide,psuriana/Halide,delcypher/Halide,gchauras/Halide,ronen/Halide,dougkwan/Halide,mikeseven/Halide,gchauras/Halide,ronen/Halide,dan-tull/Halide,dan-tull/Halide,delcypher/Halide,psuriana/Halide,kenkuang1213/Halide,kgnk/Halide,kgnk/Halide,dougkwan/Halide,ayanazmat/Halide,psuriana/Halide,aam/Halide,mcanthony/Halide,lglucin/Halide,gchauras/Halide,mcanthony/Halide,kgnk/Halide,ronen/Halide,lglucin/Halide,fengzhyuan/Halide,tdenniston/Halide,gchauras/Halide,smxlong/Halide,adasworks/Halide,rodrigob/Halide,ronen/Halide,adasworks/Halide,fengzhyuan/Halide,fengzhyuan/Halide,mcanthony/Halide,dan-tull/Halide,smxlong/Halide,tdenniston/Halide,adasworks/Halide,dougkwan/Halide,ronen/Halide,damienfir/Halide,psuriana/Halide,kgnk/Halide,tdenniston/Halide,jiawen/Halide,aam/Halide,fengzhyuan/Halide,mcanthony/Halide,jiawen/Halide,tdenniston/Halide,ayanazmat/Halide,lglucin/Halide,adasworks/Halide,myrtleTree33/Halide,delcypher/Halide,smxlong/Halide,psuriana/Halide,myrtleTree33/Halide,damienfir/Halide,rodrigob/Halide,aam/Halide,psuriana/Halide,delcypher/Halide,dougkwan/Halide,mikeseven/Halide,myrtleTree33/Halide,aam/Halide,aam/Halide,dan-tull/Halide,rodrigob/Halide,smxlong/Halide,dougkwan/Halide,jiawen/Halide,dougkwan/Halide,rodrigob/Halide,smxlong/Halide,rodrigob/Halide,myrtleTree33/Halide,rodrigob/Halide,adasworks/Halide,mikeseven/Halide,myrtleTree33/Halide,lglucin/Halide,kenkuang1213/Halide,dan-tull/Halide,myrtleTree33/Halide,myrtleTree33/Halide,smxlong/Halide,aam/Halide,dougkwan/Halide,rodrigob/Halide,lglucin/Halide,fengzhyuan/Halide,delcypher/Halide,damienfir/Halide,damienfir/Halide,rodrigob/Halide,kenkuang1213/Halide,kenkuang1213/Halide,dougkwan/Halide,myrtleTree33/Halide,tdenniston/Halide,ronen/Halide,ayanazmat/Halide,mcanthony/Halide,damienfir/Halide,kenkuang1213/Halide,delcypher/Halide,dan-tull/Halide,ayanazmat/Halide,ronen/Halide,kgnk/Halide,damienfir/Halide,ayanazmat/Halide,mcanthony/Halide,delcypher/Halide,kenkuang1213/Halide,dan-tull/Halide,fengzhyuan/Halide,kgnk/Halide,kgnk/Halide,smxlong/Halide,tdenniston/Halide,delcypher/Halide,jiawen/Halide,mikeseven/Halide,mcanthony/Halide,kgnk/Halide,tdenniston/Halide,ronen/Halide,fengzhyuan/Halide,psuriana/Halide,ayanazmat/Halide,jiawen/Halide,kenkuang1213/Halide,tdenniston/Halide,mcanthony/Halide,aam/Halide,smxlong/Halide,jiawen/Halide,lglucin/Halide,adasworks/Halide,mikeseven/Halide,ayanazmat/Halide,adasworks/Halide,fengzhyuan/Halide,lglucin/Halide,jiawen/Halide,ayanazmat/Halide,dan-tull/Halide