Diagnostics for class array

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### How are you using the lua-language-server?

Visual Studio Code Extension (sumneko.lua)

### Which OS are you using?

Windows

### What is the issue affecting?

Type Checking

### Expected Behaviour

When a class is matched with its array it should produce a diagnostic error.

### Actual Behaviour

No diagnostic error is produced when a class array is matched with a class.

### Reproduction steps

1. Paste the following code:
```lua
---@class classA
local a

---@type classA[]
local b

---@param param1 classA[]
---@return classA
local function testFunc(param1)
param1 = a
return b
end

local result = testFunc(a)
```
2. Assigning `param1`, returning `b` and calling `testFunc` with `a` should all produce diagnostic errors, but no diagnostic error is produced.

### Additional Notes

Another class, such as `classB` can be matched with `classA[]` without error.

### Log File

_No response_

Exécutez la reproduction Lua dans l’extension Visual Studio Code et examinez le point d’entrée du diagnostic de vérification des types concernant la compatibilité entre classes et tableaux. Vérifiez que l’affectation de param1, le retour de b et l’appel à testFunc(a) produisent chacun des diagnostics, tandis que la comparaison de classB reste couverte par le comportement existant.

Rédigé par le modèle d'indexation à partir du texte de l'issue.