Errors differ from Fluent playground

[Ygg01]

For example following entry

bible-heal-fail-others = {CAPITALIZE(THE$user))}

Would fail on playground:

{
    "type": "Resource",
    "body": [
        {
            "type": "Junk",
            "annotations": [
                {
                    "type": "Annotation",
                    "code": "E0003",
                    "arguments": [
                        ")"
                    ],
                    "message": "Expected token: \")\"",
                    "span": {
                        "type": "Span",
                        "start": 40,
                        "end": 40
                    }
                }
            ],
            "content": "bible-heal-fail-others = {CAPITALIZE(THE$user))}",
            "span": {
                "type": "Span",
                "start": 0,
                "end": 48
            }
        }
    ],
    "span": {
        "type": "Span",
        "start": 0,
        "end": 48
    }
}

while on Linguini it would return with a different error.

[Ygg01]

Should be closed via 44f6271