Use named-readtables #186

Job	Run time
ci-config	1s
tests [lisp=allegro]	3m 20s
report-warnings [lisp=abcl]	5m 19s
tests [lisp=ccl]	15m 14s
report-warnings [lisp=allegro]	3m 51s
tests [lisp=cmucl]	2m 22s
report-warnings [lisp=ccl]	2m 30s
tests [lisp=ecl]	13m 37s
report-warnings [lisp=cmucl]	2m 15s
tests [lisp=abcl]	15m 13s
report-warnings [lisp=ecl]	14m 3s
tests [lisp=sbcl-bin]	6m 24s
report-warnings [lisp=sbcl-bin]	1m 51s
	1h 26m 0s

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