Do not apply W23 empty_list_concat if there is comment in the list

[jian-lin]

I want to easily write some valid nix code for demonstration / tutorial.

I want statix to keep [ /* my.patch */ ] in the following code instead of removing it.

final: prev: {
  hello = prev.hello.overrideAttrs (_finalAttrs: previousAttrs: {
    patches = previousAttrs.patches or [ ] ++ [ /* my.patch */ ];
  });
}

Alternatively, the goal can be achieved if #61 is implemented.