Defines starting with `e' in src/cpu/jit

• EAX_INDEX src/cpu/jit/codegen_x86.c:37
• EBP_INDEX src/cpu/jit/codegen_x86.c:42
• EBX_INDEX src/cpu/jit/codegen_x86.c:40
• ECX_INDEX src/cpu/jit/codegen_x86.c:38
• EDI_INDEX src/cpu/jit/codegen_x86.c:44
• EDX_INDEX src/cpu/jit/codegen_x86.c:39
• ESI_INDEX src/cpu/jit/codegen_x86.c:43
• ESP_INDEX src/cpu/jit/codegen_x86.c:41