feat(`sol!`): function calls should directly yield result #2278

Job	Run time
clippy	39s
docs	52s
features stable	1m 49s
check no_std	39s
features stable --all-targets	2m 52s
fmt	14s
features nightly	2m 25s
features nightly --all-targets	3m 32s
miri --no-default-features	5m 39s
miri	5m 40s
wasm	32s
miri --all-features	8m 34s
test ubuntu-latest stable --no-default-features	1m 0s
test ubuntu-latest stable	1m 0s
test ubuntu-latest nightly --no-default-features	1m 19s
test ubuntu-latest nightly	1m 15s
test ubuntu-latest 1.81 --no-default-features	39s
test ubuntu-latest 1.81	40s
test windows-latest stable --no-default-features	3m 1s
test windows-latest stable	3m 26s
test windows-latest nightly --no-default-features	3m 7s
test windows-latest nightly	3m 9s
test windows-latest 1.81 --no-default-features	1m 29s
test windows-latest 1.81	2m 2s
test ubuntu-latest 1.81 --features json	41s
test windows-latest 1.81 --features json	2m 22s
test ubuntu-latest nightly --all-features	1m 25s
test windows-latest nightly --all-features	3m 13s
deny / cargo deny check	14s
ci success	1s
	1h 3m 30s

Provide feedback