in `#[var]s`, handle renamed `#[func]`s #3259

Job	Run time
doc-lints	30s
clippy	31s
godot-itest (macos)	24s
godot-itest (windows)	16s
license-guard	24s
run-examples	14s
godot-itest (linux-full)	16s
rustfmt	17s
unit-test	29s
godot-itest (linux-features-experimental)	14s
godot-itest (linux-4.1)	21s
godot-itest (linux-4.2)	23s
godot-itest (linux-memcheck)	23s
ci-status	1s
	4m 43s

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