The unused class variable warning appears even if variable used through autoload

[Chaosus]

Godot version:
3.1

Issue description:
I think its not correct to warn user if autoload variable used by other scripts

Minimal reproduction project:
WarningBug.zip

[vnen]

This is not a bug. The warning is about "not used in the script". Usage in other scripts are not considered.

[Chaosus]

So I need to supress that warning in every autoload ?

[vnen]

So I need to supress that warning in every autoload ?

Yes, or disable the "Unused class variable" warning.

[Chaosus]

Ok.. thanks

[vnen]

To clarify, there's no way to know if a class variable is used in other scripts, unless we scan every script in the project, which is inefficient. That's one reason I opened #19811.