Make predicate with missing capture return true #217

Job	Run time
build (ubuntu-latest, 3.12.0, false)	1m 12s
build_asan	4m 22s
build (ubuntu-latest, 3.12.0, true)	30s
build (ubuntu-latest, 3.11.6, false)	50s
build (ubuntu-latest, 3.11.6, true)	34s
build (ubuntu-latest, 3.10.11, false)	23s
build (ubuntu-latest, 3.10.11, true)	21s
build (ubuntu-latest, 3.8.17, false)	1m 1s
build (ubuntu-latest, 3.8.17, true)	31s
build (ubuntu-20.04, 3.6.8, false)	29s
build (ubuntu-20.04, 3.6.8, true)	20s
build (ubuntu-latest, pypy-3.7, false)	54s
build (ubuntu-latest, pypy-3.7, true)	38s
build (macos-latest, 3.12.0, false)	1m 51s
build (macos-latest, 3.11.6, false)	36s
build (macos-latest, 3.10.11, false)	40s
build (macos-latest, 3.8.17, false)	44s
build (macos-latest, 3.6.8, false)	45s
build (macos-latest, pypy-3.7, false)	37s
build (windows-latest, 3.12.0, false)	2m 0s
build (windows-latest, 3.11.6, false)	2m 7s
build (windows-latest, 3.10.11, false)	1m 42s
build (windows-latest, 3.8.10, false)	1m 24s
build (windows-latest, 3.6.8, false)	2m 28s
build (windows-latest, pypy-3.7, false)	1m 49s
	28m 48s

Provide feedback