Overriding methods

Nobody has claimed this yet.

It would be great if I can override fields, not just shadow them, to retain their signature and doc.

```lua
---@class (exact) A
local a = {}

---Test Comment
---@param test string Some argument
function a:Method(test) end

---@class (exact) B : A
local b = {}

function b:Method(test) end

---@type B
local test

test:Method("") -- Annotations are gone
```

The signature wont change for overridden methods, and thus I would like to avoid copy pasting the whole doc for each method. How would I resolve this efficiently?

Start by reproducing the Lua example in the issue and inspect how class inheritance currently handles shadowed fields and overridden methods. The work is done when an overridden method retains the inherited signature and documentation without requiring duplicated annotations.

Written by the indexing model from the issue text.