[
  {
    "type": "SingleLine",
    "text": " drop this default clause",
    "start": {
      "line": 6,
      "column": 12,
      "offset": 97
    },
    "end": {
      "line": 7,
      "column": 0,
      "offset": 125
    }
  },
  {
    "type": "SingleLine",
    "text": " https://github.com/mishoo/UglifyJS2/issues/141",
    "start": {
      "line": 7,
      "column": 12,
      "offset": 137
    },
    "end": {
      "line": 8,
      "column": 0,
      "offset": 187
    }
  }
]