support new scala 3 syntax. #1890

Job	Run time
build (2_12, mima)	1m 51s
build (2_12, e2e)	10s
build (2_12, test)	12m 32s
build (2_13, mima)	2m 15s
conformance	2m 26s
build (2_13, e2e)	6s
build (2_13, test)	14m 17s
build (3, mima)	10s
build (3, e2e)	9s
build (3, test)	14m 9s
build (2_12, examples_and_formatting)	3m 51s
build (2_13, scala3_compat_test)	8m 52s
build (3, scala3_compat_test)	10m 50s
ci-passed	3s
	1h 11m 41s

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