function isClassConstructor(node) {
	return (
		node.type === "FunctionExpression" &&
		node.parent &&
		node.parent.type === "MethodDefinition" &&
		node.parent.kind === "constructor"
	);
}
Checks whether a given node is a `constructor` method in an ES6 class
@param {ASTNode} node A node to check
@returns {boolean} `true` if the node is a `constructor` method