moved the StmtOutputFormat enum to make it more usable
moved the StmtOutputFormat enum to make it more usable


Former-commit-id: d60f632d9d0dcec079544d0debee9660c4243f0f
Trass3r/Halide,Trass3r/Halide,Trass3r/Halide,darkbuck/Halide,Trass3r/Halide,darkbuck/Halide,Trass3r/Halide,darkbuck/Halide,darkbuck/Halide,Trass3r/Halide,Trass3r/Halide,darkbuck/Halide,darkbuck/Halide,darkbuck/Halide