[WIP] in `#[var]s`, handle renamed `#[func]`s #3209

Job	Run time
doc-lints	47s
license-guard	30s
clippy	29s
godot-itest (macos)	56s
run-examples	1m 25s
godot-itest (windows)	1m 56s
rustfmt	20s
godot-itest (linux-full)	2m 16s
unit-test	2m 30s
godot-itest (linux-features-experimental)	1m 51s
godot-itest (linux-4.1)	1m 21s
godot-itest (linux-4.2)	1m 11s
godot-itest (linux-memcheck)	2m 3s
ci-status	1s
	17m 36s

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