Add link.dart hook #302

Job	Run time
build (ubuntu, stable, native_assets_builder, true)	52s
build (ubuntu, stable, native_assets_cli, true)	49s
build (ubuntu, stable, native_toolchain_c, true)	3m 37s
build (ubuntu, dev, native_assets_builder, true)	28s
build (ubuntu, dev, native_assets_cli, true)	22s
build (ubuntu, dev, native_toolchain_c, true)	19s
build (macos, stable, native_assets_builder, true)	2m 46s
build (macos, stable, native_assets_cli, true)	3m 1s
build (macos, stable, native_toolchain_c, true)	7m 18s
build (windows, stable, native_assets_builder, true)	1m 35s
build (windows, stable, native_assets_cli, true)	1m 21s
build (windows, stable, native_toolchain_c, true)	4m 6s
coverage-finished	0s
	26m 34s

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