in `#[var]s`, handle renamed `#[func]`s #3183

Job	Run time
rustfmt	15s
doc-lints	45s
clippy	1m 49s
license-guard	31s
godot-itest (macos)	1m 13s
godot-itest (windows)	2m 41s
run-examples	1m 18s
godot-itest (linux-full)	2m 43s
unit-test	2m 24s
godot-itest (linux-features-experimental)	2m 32s
godot-itest (linux-4.1)	1m 21s
godot-itest (linux-4.2)	1m 20s
godot-itest (linux-memcheck)	2m 5s
ci-status	1s
	20m 58s

Provide feedback