Reject trailing commas inside JSON arrays and objects

[planetis-m]

No description provided.

[planetis-m]

nimlsp uses this JSON:

    const requestMessage = """{
        "jsonrpc": "2.0",
        "id": 100,
        "method": "something",
    }"""
    const notificationMessage = """{
        "jsonrpc": "2.0",
        "method": "something",
    }"""

Parser now rejects it.

[Araq]

What does that mean? Got it fixed already, not part of the CI?

[planetis-m]

What does that mean? Got it fixed already, not part of the CI?

Right, I submitted a PR for nimlsp that fixed the above issue.

[Araq]

We should do this via a strict mode, I think not breaking code is more important than spec-compat when it's a pure "allows for more" derivation from the spec.