Fix exponential increase of timeout when finding ancestor elements

The timeout passed to the "find" method was multiplied by the
"findTimeoutMultiplier" attribute. However, as "find" used
"findAncestor" and "findAncestor", in turn, used "find" itself the
timeout was increased exponentially for ancestor elements. Now "find"
was split in "find" and "findInternal"; the first method is the public
one and modifies the given parameters as needed and then calls the
second method, private, that performs the find itself.

Signed-off-by: Daniel Calviño Sánchez <danxuliu@gmail.com>

tests/acceptance/features/core/Actor.php

@@ -165,6 +165,18 @@ class Actor {
 	public function find($elementLocator, $timeout = 0, $timeoutStep = 0.5) {
 		$timeout = $timeout * $this->findTimeoutMultiplier;
 
+		return $this->findInternal($elementLocator, $timeout, $timeoutStep);
+	}
+
+	/**
+	 * Finds an element in the Mink Session of this Actor.
+	 *
+	 * The timeout is not affected by the multiplier set using
+	 * setFindTimeoutMultiplier().
+	 *
+	 * @see find($elementLocator, $timeout, $timeoutStep)
+	 */
+	private function findInternal($elementLocator, $timeout, $timeoutStep) {
 		$element = null;
 		$selector = $elementLocator->getSelector();
 		$locator = $elementLocator->getLocator();
@@ -211,7 +223,7 @@ class Actor {
 		$ancestorElement = $elementLocator->getAncestor();
 		if ($ancestorElement instanceof Locator) {
 			try {
-				$ancestorElement = $this->find($ancestorElement, $timeout, $timeoutStep);
+				$ancestorElement = $this->findInternal($ancestorElement, $timeout, $timeoutStep);
 			} catch (NoSuchElementException $exception) {
 				// Little hack to show the stack of ancestor elements that could
 				// not be found, as Behat only shows the message of the last