More checks in IROperator
More checks in IROperator

Despite the constructor checks in IR.h, undefined Exprs
were crashing because IROperator operators like to sniff the type.

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