function isInLoop(node) {
	for (
		let currentNode = node;
		currentNode && !isFunction(currentNode);
		currentNode = currentNode.parent
	) {
		if (isLoop(currentNode)) {
			return true;
		}
	}

	return false;
}
Checks whether the given node is in a loop or not.
@param {ASTNode} node The node to check.
@returns {boolean} `true` if the node is in a loop.