bug:

[ivyl]

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Neovim version (nvim -v)

0.9.5

Operating system/version

Linux

Describe the bug

function vim.fn.bufname(buf) end
--- @param buf? buffer

buffer is an alias to integer but that function takes string (e.g. "%", "$")

Steps To Reproduce

1. type vim.fn.bufnr("%") in your init.lua
2. get:

param-type-mismatch: Cannot assign `string` to parameter `integer?`.
- `string` cannot match `integer?`
- Type `string` cannot match `nil`
- Type `string` cannot match `integer`

Expected Behavior

no lsp errors

Repro

No response