Variables starting with `b' in src/cpu/jit

• bi src/cpu/jit/compemu_codegen.h:60
• BlockInfoAllocator src/cpu/jit/compemu_support_codegen.c:666
• branch_cc src/cpu/jit/compemu_support.c:39
• bsf src/cpu/jit/codegen_x86.c:4026