Very confusing error when not appropriately getting `value`

[WreckedAvent]

Input:

syntax fun = function(ctx) {
    let param = ctx.next();
    let body = ctx.next().value.inner();
    return #`
        function(${param}) { 
            return ${body}; 
        }
    `;
}

let add = fun x { x + 1 }

Actual:

TypeError: s_924.addScope is not a function

Expected:
Some error about needing to get the value out of the generator return value or something related to the actual problem instead of this addScope thing

[gabejohnson]

Or at least displaying the value of s_924?

[gabejohnson]

The object that caused the error to be thrown is now shown

Error: Unknown object: {"done":false,"value":{"value":{"token":{"type":{"klass":{"name":"Identifier","isIdentifierName":true},"name":""},"value":"x","slice":{"text":"x","start":1117,"startLocation":{"line":44,"column":15,"filename":"","position":1117},"end":1118}},"bindings":{"_map":{}},"scopesets":{"all":[{"name":"outsideEdge_1"},{"name":"u_5"},{"name":"i_6"}],"phase":{"0":[{"name":"insideEdge0_2"}]}}},"type":"RawSyntax","loc":null}}

Can we close this?