[lsp-server] 🐞 Descriptions on query variables not working yet

[phryneas]

Is there an existing issue for this?

• I have searched the existing issues

Current Behavior

Currently, descriptions on query variables cause an error:

Expected Behavior

According to graphql/graphql-spec#1170, the comment should not error.

Steps To Reproduce

Reproduction here:
https://graphql.org/swapi-graphql/?query=%22%22%22Foo%22%22%22%0Aquery%20Foo%20(%0A%20%20%20%20%22%22%22%0A%20%20%20%20Argument-Level%20Comment%20Test%0A%20%20%20%20%22%22%22%0A%20%20%20%20%24test%3A%20Boolean!%0A)%20%7B%0A%20%20__typename%20%40include(if%3A%20%24test)%0A%7D&operationName=Foo

Environment

• LSP Server Version:5.5.0
• OS: OSX
• LSP Client: GraphiQL

Anything else?

No response

[phryneas]

My fault, this seems to be a graphql-js bug.
I opened a PR over there - graphql/graphql-js#4517. PR reviews there are very welcome.