code: function equalsLocation(a, b) {
      return a.range[0] === b.range[0] && a.range[1] === b.range[1]
  }
docs: Check whether the given tokens is a equals range.
  @param  {Token} a The token
  @param  {Token} b The token
  @returns {boolean}  `true` if the given tokens is a equals range.