{
  "module": "Test",
  "kind": "Generic Error",
  "text": [ { "type": "text", "content": "Instance overlaps." } ],
  "span": {
    "filename": "test-programs/suites/008-typeclasses/009-generic-duplicate/Test.aum",
    "startp": { "line": 17, "column": 4 },
    "end": { "line": 22, "column": 8 }
  },
  "context": [
    [ 15, "    end;" ],
    [ 16, "" ],
    [ 17, "    generic [U: Free]" ],
    [ 18, "    instance Foo(Bar[U]) is" ],
    [ 19, "        method Accept(x: Bar[U]): Unit is" ],
    [ 20, "            return nil;" ],
    [ 21, "        end;" ],
    [ 22, "    end;" ],
    [ 23, "" ],
    [ 24, "    function main(): ExitCode is" ]
  ]
}