bugfix: tweak suffixify by hash logic #9265

Job	Run time
ormolu	27s
build ucm (ubuntu-20.04)	4m 39s
build ucm (macOS-12)	12m 49s
build ucm (windows-2019)	8m 31s
run transcripts (ubuntu-20.04)	3m 55s
generate jit source	5s
run transcripts (macOS-12)	7m 55s
run interpreter tests (ubuntu-20.04)	1m 6s
run transcripts (windows-2019)	7m 32s
run interpreter tests (macOS-12)	2m 14s
build jit binary / build jit binary (ubuntu-20.04)	8s
build jit binary / build jit binary (macOS-12)	23s
build jit binary / build jit binary (windows-2019)	19s
test jit / test jit (ubuntu-20.04)	12s
test jit / test jit (macOS-12)	21s
	50m 36s

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