godot: Godot 4: Autocompletion for relative nodes ($ selector) doesn't work

Godot version

4.0.alpha11

System information

MBP M1, MacOS Monterey

Issue description

Autocomplete doesn’t work for relative nodes. When using the dollar sign selector ($MyNode), the resolved type of any node is always Node, which makes type-specific variables and methods not show up in autocomplete.

Example: Take this Sprite2D node (called Sprite):

The variable flip_h is not shown in the autocomplete dropdown (but does work in runtime).

If we explicitly create a Sprite2D variable, it works:

But if we assign a node to this variable, it goes back to not working:

Therefore, my conclusion is:

1. Relative nodes are not assigned the correct type
2. In general, the types themselves do work (if used explicitly)
3. But for some reason, selecting a relative node overrides the explicit type and reverts the variable type to Node

Steps to reproduce

1. Create any scene with two nodes (parent and child)
2. Create a script for the parent
3. Try to access the child via dollar sign selector
4. Try to access a well known variable \ method of the child from the parent’s script
5. Autocomplete will not show the desired variable \ method (but they will work in runtime)

Minimal reproduction project

No response