Autocompletion is not offered for a parameter with a `@class` type

How are you using the lua-language-server?

Visual Studio Code Extension (sumneko.lua)

Which OS are you using?

Windows

What is the issue affecting?

Completion

Expected Behaviour

When using a defined class as the type for a parameter, the fields of that table should be offered as an autocompletion when calling the function.

For an example, using @alias works like so:

Actual Behaviour

No autocompletion is automatically offered when using @class as the type for a parameter. If you press CTRL + Space, you can make the completions appear, but they will not appear automatically.

Nothing is offered:

Until I press CTRL + Space:

Reproduction steps

1. Use the below code:

   ---@class Options
   ---@field page number
   ---@field active boolean
   
   ---@param opts Options
   local function acceptOptions(opts) end
   
   acceptOptions()
   

2. Move your cursor to line 9 (acceptOptions()) and place it between the parentheses
   
3. Enter { to start a table literal
4. No completions are offered
5. Press CTRL + Space and notice that the first 2 options are actually proper completions from the Options class. These should automatically be offered.

Additional Notes

No response

Log File

No response

No source file or test is named in the issue. Start by running the supplied Lua reproduction in the VS Code extension and trace completion behavior after entering { for the Options parameter; done means the @class fields are offered automatically without pressing Ctrl+Space.