Merge branch '2.8'

* 2.8:
  [PhpUnit] exit gracefully to workaround segfaults at shutdown time
  [ExpressionLanguage] marked node classes as being internal
  [Yaml] marked some classes as being internal

Author: nicolas-grekas

src/Symfony/Bridge/PhpUnit/SymfonyTestsListener.php

@@ -52,7 +52,8 @@ public function startTestSuite(\PHPUnit_Framework_TestSuite $suite)
                     $this->state = 2;
 
                     if (!$this->wasSkipped = require $this->skippedFile) {
-                        exit("All tests already ran successfully.\n");
+                        echo "All tests already ran successfully.\n";
+                        $suite->setTests(array());
                     }
                 }
             }

src/Symfony/Component/ExpressionLanguage/Node/ArgumentsNode.php

@@ -13,6 +13,11 @@
 
 use Symfony\Component\ExpressionLanguage\Compiler;
 
+/**
+ * @author Fabien Potencier <[email protected]>
+ *
+ * @internal
+ */
 class ArgumentsNode extends ArrayNode
 {
     public function compile(Compiler $compiler)

src/Symfony/Component/ExpressionLanguage/Node/ArrayNode.php

@@ -13,6 +13,11 @@
 
 use Symfony\Component\ExpressionLanguage\Compiler;
 
+/**
+ * @author Fabien Potencier <[email protected]>
+ *
+ * @internal
+ */
 class ArrayNode extends Node
 {
     protected $index;

src/Symfony/Component/ExpressionLanguage/Node/BinaryNode.php

@@ -13,6 +13,11 @@
 
 use Symfony\Component\ExpressionLanguage\Compiler;
 
+/**
+ * @author Fabien Potencier <[email protected]>
+ *
+ * @internal
+ */
 class BinaryNode extends Node
 {
     private static $operators = array(

src/Symfony/Component/ExpressionLanguage/Node/ConditionalNode.php

@@ -13,6 +13,11 @@
 
 use Symfony\Component\ExpressionLanguage\Compiler;
 
+/**
+ * @author Fabien Potencier <[email protected]>
+ *
+ * @internal
+ */
 class ConditionalNode extends Node
 {
     public function __construct(Node $expr1, Node $expr2, Node $expr3)

src/Symfony/Component/ExpressionLanguage/Node/ConstantNode.php

@@ -13,6 +13,11 @@
 
 use Symfony\Component\ExpressionLanguage\Compiler;
 
+/**
+ * @author Fabien Potencier <[email protected]>
+ *
+ * @internal
+ */
 class ConstantNode extends Node
 {
     public function __construct($value)

src/Symfony/Component/ExpressionLanguage/Node/FunctionNode.php

@@ -13,6 +13,11 @@
 
 use Symfony\Component\ExpressionLanguage\Compiler;
 
+/**
+ * @author Fabien Potencier <[email protected]>
+ *
+ * @internal
+ */
 class FunctionNode extends Node
 {
     public function __construct($name, Node $arguments)

src/Symfony/Component/ExpressionLanguage/Node/GetAttrNode.php

@@ -13,6 +13,11 @@
 
 use Symfony\Component\ExpressionLanguage\Compiler;
 
+/**
+ * @author Fabien Potencier <[email protected]>
+ *
+ * @internal
+ */
 class GetAttrNode extends Node
 {
     const PROPERTY_CALL = 1;

src/Symfony/Component/ExpressionLanguage/Node/NameNode.php

@@ -13,6 +13,11 @@
 
 use Symfony\Component\ExpressionLanguage\Compiler;
 
+/**
+ * @author Fabien Potencier <[email protected]>
+ *
+ * @internal
+ */
 class NameNode extends Node
 {
     public function __construct($name)

src/Symfony/Component/ExpressionLanguage/Node/UnaryNode.php

@@ -13,6 +13,11 @@
 
 use Symfony\Component\ExpressionLanguage\Compiler;
 
+/**
+ * @author Fabien Potencier <[email protected]>
+ *
+ * @internal
+ */
 class UnaryNode extends Node
 {
     private static $operators = array(

src/Symfony/Component/Yaml/Escaper.php

@@ -16,6 +16,8 @@
  * YAML strings.
  *
  * @author Matthew Lewinski <[email protected]>
+ *
+ * @internal
  */
 class Escaper
 {

src/Symfony/Component/Yaml/Inline.php

@@ -204,6 +204,8 @@ private static function dumpArray($value, $exceptionOnInvalidType, $objectSuppor
      * @return string A YAML string
      *
      * @throws ParseException When malformed inline YAML string is parsed
+     *
+     * @internal
      */
     public static function parseScalar($scalar, $delimiters = null, $stringDelimiters = array('"', "'"), &$i = 0, $evaluate = true, $references = array())
     {

src/Symfony/Component/Yaml/Unescaper.php

@@ -18,6 +18,8 @@
  * YAML strings.
  *
  * @author Matthew Lewinski <[email protected]>
+ *
+ * @internal
  */
 class Unescaper
 {