Return type inference fails if the parameter contains a LuaJIT 3 style lambda

[memchr]

The return value of a function call will be inferred as unknown if any of its parameters is a LuaJIT 3 lambda.

Example

using emmylua_ls 0.25.1

local function foo(_)
  return 42
end


local a = foo("string") -- inferred as number

local b = foo(123) -- inferred as number

local c = foo(function () end) -- inferred as number

local d = foo(|| -> 2) -- inferred as unknown