Add StateVariable location #5729

Job	Run time
tests (ubuntu-latest, 3.8, data_dependency)	29s
tests (ubuntu-latest, 3.8, path_filtering)	32s
tests (ubuntu-latest, 3.8, erc)	32s
tests (ubuntu-latest, 3.8, find_paths)	30s
tests (ubuntu-latest, 3.8, flat)	30s
tests (ubuntu-latest, 3.8, interface)	33s
tests (ubuntu-latest, 3.8, printers)	1m 14s
tests (ubuntu-latest, 3.8, slither_config)	31s
tests (ubuntu-latest, 3.8, upgradability)	52s
tests (ubuntu-latest, 3.12, data_dependency)	25s
tests (ubuntu-latest, 3.12, path_filtering)	27s
tests (ubuntu-latest, 3.12, erc)	25s
tests (ubuntu-latest, 3.12, find_paths)	28s
tests (ubuntu-latest, 3.12, flat)	26s
tests (ubuntu-latest, 3.12, interface)	37s
tests (ubuntu-latest, 3.12, printers)	1m 11s
tests (ubuntu-latest, 3.12, slither_config)	26s
tests (ubuntu-latest, 3.12, upgradability)	53s
	11m 1s

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