code: function isBindThis(node, currentNode) {
      return node.object === currentNode &&
          propertyIndicatesBind(node.property) &&
          node.parent.type === 'CallExpression' &&
          node.parent.callee === node;
  }
docs: Is the node a `.bind(this)` node?
  @param {ASTNode} node - the node property.
  @returns {boolean}