Do not return hover info if description is not available

[bhsubra]

We are getting results back on hover request even if contents is empty. This would require IDEs to add a check to not render it. Range without contents is not useful. Should the language server return null if description is not available?

Message:
{
"jsonrpc": "2.0",
"id": 46,
"result": {
"contents": [
""
],
"range": {
"start": {
"line": 6,
"character": 0
},
"end": {
"line": 6,
"character": 8
}
}
}
}

[ssbarnea]

IMHO, hover should return "title" when "description" is unavailable. At this moment I did see it returning only the title. I also raised #480 for improving hover info.

[gorkem]

Did #500 also fix this one? I am closing, please let me know if it is not fixed for you.