Fixed a bug with name clobbering in vector let simplification
Fixed a bug with name clobbering in vector let simplification

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