Refactoring and enhancements to RGBASM warnings #3918

Job	Run time
macos-static	2m 16s
windows-mingw-build (32)	1m 0s
windows-mingw-build (64)	58s
unix (ubuntu-20.04, g++, make)	5m 11s
windows (32, windows-2019)	5m 12s
unix (ubuntu-20.04, g++, cmake)	5m 24s
unix (ubuntu-20.04, clang++, make)	5m 52s
windows (32, windows-2022)	6m 39s
unix (ubuntu-20.04, clang++, cmake)	5m 51s
windows (64, windows-2019)	4m 36s
unix (ubuntu-22.04, g++, make)	5m 36s
windows (64, windows-2022)	4m 27s
unix (ubuntu-22.04, g++, cmake)	5m 39s
unix (ubuntu-22.04, clang++, make)	3m 56s
unix (ubuntu-22.04, clang++, cmake)	3m 59s
unix (macos-14, clang++, make)	6m 37s
unix (macos-14, clang++, cmake)	7m 11s
windows-mingw-testing (windows-2019, 32)	4m 51s
windows-mingw-testing (windows-2019, 64)	4m 13s
windows-mingw-testing (windows-2022, 32)	3m 54s
windows-mingw-testing (windows-2022, 64)	3m 54s
	1h 37m 16s

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