missing @nodiscard in doc.json exports

[haithium]

How are you using the lua-language-server?

Command Line

Which OS are you using?

Linux

What is the issue affecting?

Annotations

Expected Behaviour

When exporting docs with lua-language-server --doc, function-level tags like @nodiscard should be included in the generated doc.json.

Actual Behaviour

Function-level tags like @nodiscard are missing from the generated doc.json.

Reproduction steps

1. Create a Lua file, e.g., Set.lua, with a function using @nodiscard:

   ---@class Set
   local Set = {}
   
   ---Return true if the set has no elements
   ---@return boolean
   ---@nodiscard
   function Set:isempty() end

2. Run lua-language-server --doc Set.lua in the project directory.

3. Open the generated doc.json.

4. Observe that the @nodiscard tag is not included.

Additional Notes

// doc.json
[
  // ...
  {
    // ...
    "fields": [
      {
        "async": false,
        "deprecated": false,
        "desc": "Return true if the set has no elements",
        "extends": {
          "args": [
            {
              "finish": [6, 8],
              "name": "self",
              "start": [6, 8],
              "type": "self",
              "view": "Set"
            }
          ],
          "desc": "Return true if the set has no elements",
          "finish": [6, 26],
          "rawdesc": "Return true if the set has no elements",
          "returns": [
            {
              "type": "function.return",
              "view": "boolean"
            }
          ],
          "start": [6, 0],
          "type": "function",
          "view": "(method) Set:isempty()\n  -> boolean"
        },
        "file": ".",
        "finish": [6, 20],
        "name": "isempty",
        "rawdesc": "Return true if the set has no elements",
        "start": [6, 9],
        "type": "setmethod",
        "view": "function",
        "visible": "public"
      }
    ],
    "name": "Set",
    "type": "type",
    "view": "Set"
  }
]

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