preproc: refine appropriate handling of PP_RMACRO/PP_RIMACRO/PP_MACRO/PP_IMACRO
preproc: refine appropriate handling of PP_RMACRO/PP_RIMACRO/PP_MACRO/PP_IMACRO

projedi/nasm,projedi/nasm,turingstudio/nasm,Distrotech/nasm,techkey/nasm,techkey/nasm,Distrotech/nasm,turingstudio/nasm,turingstudio/nasm,Distrotech/nasm,projedi/nasm,letolabs/nasm,turingstudio/nasm,projedi/nasm,techkey/nasm,techkey/nasm,techkey/nasm,letolabs/nasm,Distrotech/nasm,letolabs/nasm,projedi/nasm