Fixes issue 2524, Slot Calculation for Variables that Cross 32-Byte #5970

Job	Run time
tests (ubuntu-latest, 3.8, data_dependency)	34s
tests (ubuntu-latest, 3.8, path_filtering)	28s
tests (ubuntu-latest, 3.8, erc)	33s
tests (ubuntu-latest, 3.8, find_paths)	28s
tests (ubuntu-latest, 3.8, flat)	30s
tests (ubuntu-latest, 3.8, interface)	35s
tests (ubuntu-latest, 3.8, printers)	1m 4s
tests (ubuntu-latest, 3.8, slither_config)	32s
tests (ubuntu-latest, 3.8, upgradability)	59s
tests (ubuntu-latest, 3.12, data_dependency)	22s
tests (ubuntu-latest, 3.12, path_filtering)	35s
tests (ubuntu-latest, 3.12, erc)	56s
tests (ubuntu-latest, 3.12, find_paths)	23s
tests (ubuntu-latest, 3.12, flat)	27s
tests (ubuntu-latest, 3.12, interface)	35s
tests (ubuntu-latest, 3.12, printers)	1m 1s
tests (ubuntu-latest, 3.12, slither_config)	33s
tests (ubuntu-latest, 3.12, upgradability)	51s
	11m 26s

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