Structs in src/cpu/jit

• cpuinfo_x86 src/cpu/jit/compemu_raw_x86.c:2236
• Pool src/cpu/jit/compemu_support_codegen.c:600
• ptt src/cpu/jit/compemu_raw_x86.c:2274
• regusage src/cpu/jit/compemu_support_codegen.c:864
• scratch_t src/cpu/jit/compemu_support_codegen.c:4998