fix(sol-types): check signature in SolEvent if non-anonymous #1999

Job	Run time
clippy	37s
check no_std	32s
docs	29s
feature-checks	4m 49s
fmt	12s
miri --no-default-features	5m 3s
miri	4m 33s
test ubuntu-latest stable --no-default-features	57s
wasm	22s
miri --all-features	6m 27s
test ubuntu-latest stable	54s
test ubuntu-latest beta --no-default-features	57s
test ubuntu-latest beta	56s
test ubuntu-latest nightly --no-default-features	46s
test ubuntu-latest nightly	46s
test ubuntu-latest 1.79 --no-default-features	31s
test ubuntu-latest 1.79	35s
test windows-latest stable --no-default-features	2m 38s
test windows-latest stable	2m 39s
test windows-latest beta --no-default-features	2m 6s
test windows-latest beta	2m 5s
test windows-latest nightly --no-default-features	2m 6s
test windows-latest nightly	2m 6s
test windows-latest 1.79 --no-default-features	1m 21s
test windows-latest 1.79	1m 15s
test ubuntu-latest 1.79 --features json	35s
test windows-latest 1.79 --features json	1m 26s
test ubuntu-latest stable --all-features	1m 25s
test ubuntu-latest beta --all-features	1m 18s
test ubuntu-latest nightly --all-features	1m 3s
	51m 29s

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