test

Optimize Lexer comment reading #1472

Job	Run time
steep-check (head)	18s
check-misc (head)	7s
test-memory (head)	29s
test-ruby (head, master)	6m 14s
test-windows (head)	1m 54s
test-ruby (3.0, master)	6m 7s
ruby-versions / Generate Ruby versions	2s
test-cpp (head, g++)	11s
test-cpp (head, clang++)	26s
test (2.5)	25s
test (2.6)	26s
test (2.7)	30s
test (3.0)	19s
test (3.1)	18s
test (3.2)	15s
test (3.3)	15s
test (3.4)	10s
test (head)	11s
	18m 37s

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