Cg_c generates working code for test/cpp/chunk
Cg_c generates working code for test/cpp/chunk

Former-commit-id: e1cab1594ff552a559d86068d81a85954f8f6c00
Trass3r/Halide,Trass3r/Halide,Trass3r/Halide,Trass3r/Halide,darkbuck/Halide,darkbuck/Halide,Trass3r/Halide,darkbuck/Halide,Trass3r/Halide,Trass3r/Halide,darkbuck/Halide,darkbuck/Halide,darkbuck/Halide,darkbuck/Halide