feat(`sol!`): function calls should directly yield result #2277

Job	Run time
docs	58s
check no_std	41s
clippy	52s
features stable	1m 39s
fmt	12s
features stable --all-targets	2m 56s
miri --no-default-features	5m 25s
features nightly	2m 36s
miri	5m 27s
features nightly --all-targets	3m 35s
test ubuntu-latest stable --no-default-features	56s
miri --all-features	7m 49s
wasm	32s
test ubuntu-latest stable	1m 0s
test ubuntu-latest nightly --no-default-features	1m 16s
test ubuntu-latest nightly	1m 12s
test ubuntu-latest 1.81 --no-default-features	37s
test ubuntu-latest 1.81	36s
test windows-latest stable --no-default-features	2m 59s
test windows-latest stable	3m 2s
test windows-latest nightly --no-default-features	3m 4s
test windows-latest nightly	2m 42s
test windows-latest 1.81 --no-default-features	1m 30s
test windows-latest 1.81	1m 32s
test ubuntu-latest 1.81 --features json	37s
test windows-latest 1.81 --features json	1m 34s
test ubuntu-latest nightly --all-features	1m 25s
test windows-latest nightly --all-features	3m 12s
deny / cargo deny check	14s
ci success	2s
	1h 0m 12s

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