Add basic support for futhark mode #5367

Job	Run time
test (ubuntu-latest, 27.2, false)	1m 59s
test (ubuntu-latest, 28.2, false)	2m 31s
test (ubuntu-latest, 29.4, false)	2m 27s
test (macos-latest, 28.2, false)	3m 30s
test (macos-latest, 29.4, false)	3m 34s
test (windows-latest, 27.2, false)	2m 34s
test (windows-latest, 28.2, false)	3m 41s
test (windows-latest, 29.4, false)	3m 26s
test (ubuntu-latest, snapshot, true)	1m 40s
test (macos-latest, snapshot, true)	2m 46s
test (windows-latest, snapshot, true)	5m 4s
	33m 12s

Provide feedback