Generic class instanced in function should return as a concrete type

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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?

Annotations, Hover

### Expected Behaviour

-

### Actual Behaviour

Hovering `strings` in this code below gives the type as `local strings: list<>|{ [integer]: string }`, whereas I expect the type/hover to be `local strings: list`.

```lua

---@class list: {[integer]:T}

---@generic T
---@param class `T`
---@return list
local function new_list(class)
return {}
end

local strings = new_list('string')

```

### Reproduction steps

-

### Additional Notes

_No response_

### Log File

_No response_

Start with the Lua reproducer in the issue and inspect the hover/type-inference path for generic class instantiation. Reproduce the reported `list<>|{ [integer]: string }` hover and verify that the result is `list`.

Written by the indexing model from the issue text.