{
  "type": "File",
  "start":0,"end":27,"loc":{"start":{"line":1,"column":0},"end":{"line":1,"column":27}},
  "errors": [
    "SyntaxError: Unexpected reserved word 'yield'. (1:16)"
  ],
  "program": {
    "type": "Program",
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    "sourceType": "script",
    "interpreter": null,
    "body": [
      {
        "type": "ExpressionStatement",
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        "expression": {
          "type": "AssignmentExpression",
          "start":15,"end":26,"loc":{"start":{"line":1,"column":15},"end":{"line":1,"column":26}},
          "operator": "=",
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            "type": "ArrayPattern",
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            "elements": [
              {
                "type": "Identifier",
                "start":16,"end":21,"loc":{"start":{"line":1,"column":16},"end":{"line":1,"column":21},"identifierName":"yield"},
                "name": "yield"
              }
            ]
          },
          "right": {
            "type": "Identifier",
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            "name": "x"
          },
          "extra": {
            "parenthesized": true,
            "parenStart": 14
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    "directives": [
      {
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        "value": {
          "type": "DirectiveLiteral",
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            "rawValue": "use strict",
            "raw": "\"use strict\"",
            "expressionValue": "use strict"
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          "value": "use strict"
        }
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    ]
  }
}