Autocomplete suggests invalid methods, ignoring static typing

[Mopsephu]

Tested versions

Godot v4.2.1.stable (Steam)

System information

Godot v4.2.1.stable - Windows 10.0.19045 - GLES3 (Compatibility) - NVIDIA GeForce RTX 2060 SUPER (NVIDIA; 31.0.15.3713) - AMD Ryzen 5 3500 6-Core Processor (6 Threads)

Issue description

I am currently working on a project allowing user to access files on the computer. I note suitable files in PackedStringArray to use less memory and fast-up the application. When it's time to not use these files anymore I want to erase them from PackedStringArray. The syntaxis hint showed me that the method I want can be used, but then for some reason debugger complains that such method does not exist in PackedStringArray. Later on, I checked up the embedded documentation and it indeed shows that 'erase' method does not exist.
I do not know if it was intended for the method to be absent, but I hope it was not as it would helped me a lot in my project.

Steps to reproduce

Create a PackedStringArray and after that try to type ".erase()". The hint appears, but debugger complains.

Minimal reproduction project (MRP)

N/A

[AThousandShips]

There is no such method indeed, this is a bug in the autocompletion

This doesn't happen if you instead write:

var allowed_files : PackedStringArray

or

var allowed_files : PackedStringArray = PackedStringArray()

It seems the autocomplete assumes too much from the right hand side and ignores the type hint

[HolonProduction]

Pick your duplicate at #85224