Bugfix for simplification of constant ramp == constant broadcast.
Bugfix for simplification of constant ramp == constant broadcast.


Former-commit-id: a5344dd3fd4a68ef85af75e40fedafd5b96916c8
Trass3r/Halide,darkbuck/Halide,Trass3r/Halide,Trass3r/Halide,darkbuck/Halide,Trass3r/Halide,darkbuck/Halide,Trass3r/Halide,darkbuck/Halide,darkbuck/Halide,darkbuck/Halide,Trass3r/Halide,Trass3r/Halide,darkbuck/Halide