in `#[var]s`, handle renamed `#[func]`s #3203

Job	Run time
license-guard	33s
doc-lints	51s
godot-itest (macos)	59s
clippy	1m 41s
godot-itest (windows)	2m 47s
run-examples	1m 11s
rustfmt	13s
godot-itest (linux-full)	1m 43s
unit-test	2m 23s
godot-itest (linux-features-experimental)	2m 7s
godot-itest (linux-4.1)	1m 5s
godot-itest (linux-4.2)	1m 6s
godot-itest (linux-memcheck)	2m 27s
ci-status	1s
	19m 7s

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