changed assertion in Func bound to accept any type that can be represented with int32
changed assertion in Func bound to accept any type that can be represented with int32

psuriana/Halide,kgnk/Halide,kgnk/Halide,kgnk/Halide,psuriana/Halide,jiawen/Halide,jiawen/Halide,psuriana/Halide,ronen/Halide,kgnk/Halide,psuriana/Halide,ronen/Halide,kgnk/Halide,psuriana/Halide,psuriana/Halide,jiawen/Halide,ronen/Halide,ronen/Halide,jiawen/Halide,ronen/Halide,ronen/Halide,psuriana/Halide,jiawen/Halide,ronen/Halide,kgnk/Halide,jiawen/Halide,kgnk/Halide,kgnk/Halide,ronen/Halide,jiawen/Halide