Output the type of certain expressions in stmt output for debugging
Output the type of certain expressions in stmt output for debugging


Former-commit-id: e815943409149b32a8091d982f542dc1e9107f4b
darkbuck/Halide,darkbuck/Halide,Trass3r/Halide,darkbuck/Halide,darkbuck/Halide,darkbuck/Halide,Trass3r/Halide,Trass3r/Halide,Trass3r/Halide,darkbuck/Halide,darkbuck/Halide,Trass3r/Halide,Trass3r/Halide,Trass3r/Halide