Lossless parser gives wrong output on vararg function parameters.

[wally2471]

Very simple repro.

local parser = require "./luaup/lossless/parse"
local util = require "./luaup/lossless/util"

local func_cst = parser([[
    local function hi(...)
    end

    local t = { ... }
    local function wow(this, is, an, arg, ...)
    end
]]).cst

print(util.tostring(func_cst))

Currently gives:

local function hi()...
    end

    local t = { ... }
    local function wow(this, is, an, arg,) ...
    end

Expected:

local function hi(...)
end

local t = { ... }
local function wow(this, is, an, arg, ...)
end

Thank you for taking time to look into this :)

[notfenv]

claude code fix it plz