Minor improvements to `All` and `Any` adapters #2317

Job	Run time
cargo +1.56 build	2m 17s
cargo test (ubuntu-latest)	4m 49s
cargo test (macos-latest)	6m 22s
cargo test (windows-latest)	6m 44s
cargo test (ubuntu-latest, aarch64-unknown-linux-gnu)	5m 20s
cargo test (ubuntu-latest, armv7-unknown-linux-gnueabihf)	11m 15s
codegen	29s
cargo +stable build	1m 9s
cargo test (ubuntu-latest, armv5te-unknown-linux-gnueabi)	9m 16s
cargo bench	1m 17s
cargo +beta build	1m 10s
cargo test (ubuntu-latest, i686-unknown-linux-gnu)	5m 7s
cargo +1.36 build (futures-{core, io, sink})	4m 9s
cargo +nightly build	1m 4s
cargo hack check --feature-powerset	4m 48s
cargo minimal-versions build	45s
cargo build --target thumbv7m-none-eabi	43s
cargo clippy	32s
cargo build --target thumbv6m-none-eabi	42s
cargo doc	27s
cargo fmt	9s
cargo miri test	10m 53s
cargo test -Z sanitizer=address	4m 32s
cargo test -Z sanitizer=memory	3m 22s
cargo test -Z sanitizer=thread	3m 0s
	1h 30m 21s

Provide feedback