Test

Stop using K&R style functions in Fast.xs #74

Job	Run time
v5.12 on ubuntu-latest	37s
v5.14 on ubuntu-latest	43s
v5.16 on ubuntu-latest	36s
v5.18 on ubuntu-latest	47s
v5.20 on ubuntu-latest	41s
v5.22 on ubuntu-latest	56s
v5.24 on ubuntu-latest	36s
v5.26 on ubuntu-latest	39s
v5.28 on ubuntu-latest	46s
v5.30 on ubuntu-latest	37s
v5.32 on ubuntu-latest	37s
v5.34 on ubuntu-latest	38s
v5.36 on ubuntu-latest	42s
v5.38 on ubuntu-latest	47s
v5.40 on macos-latest	15s
v5.40 on windows-2019	1m 37s
v5.40 on ubuntu-latest (no memcached)	27s
v5.40 on ubuntu-latest (author, ithread)	1m 12s
	13m 13s

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