user_context_value() needs to give explicit name to Parameter
user_context_value() needs to give explicit name to Parameter

otherwise, a mismatched synthesized name will be given, which can give
false failures in Pipeline::validate_arguments

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