Ruby

This is not prism #8123

Job	Run time
clang_compile (4.0)	48s
C99_compile (head)	1m 1s
C99_compile (4.0)	55s
clang_compile (head)	1m 7s
test (head, test)	2m 10s
test (4.0, stdlib_test)	1m 49s
test (head, stdlib_test rubocop)	2m 9s
test (4.0, test)	2m 29s
test (3.4, test)	2m 47s
test (asan-release, test)	8m 16s
test (4.0, typecheck_test)	1m 23s
test (4.0, test, --enable-frozen-string-literal)	2m 29s
test (3.3, test)	2m 45s
test (4.0, rubocop validate test_doc build test_generate_stdlib raap)	2m 14s
test (3.2, test)	2m 37s
test (4.0, stdlib_test, --enable-frozen-string-literal)	1m 56s
	36m 55s

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