Onready variable doesn't correctly use provided type in autocompletion

[KoBeWi]

Godot version:

3.2.2 beta3

Steps to reproduce:

1. Create a scene with a child node
2. Add script to the root
3. Create onready variable that holds the child
4. Check autcompletion
   
5. Switch to another scene tab
6. Check autocompletion again
   

The autocompletion works only for the actual type of the node and in another scene the editor can't find it, so it uses Node (ignoring the explicitly set type). Typing the above line as onready var text_edit = $TextEdit as TextEdit seems to fix the issue.

[KoBeWi]

False alarm, I just had another scene open. But this is actually another issue, editing rn.

[KoBeWi]

This is basically #42005
Fixed on master.