N°2651 rollback gitignore for lib tests dirs

Too dangerous ! We'll work properly on this but for 2.8

lib/nikic/php-parser/test/PhpParser/ErrorHandler/CollectingTest.php

@@ -0,0 +1,22 @@
+<?php
+
+namespace PhpParser\ErrorHandler;
+
+use PhpParser\Error;
+
+class CollectingTest extends \PHPUnit_Framework_TestCase {
+    public function testHandleError() {
+        $errorHandler = new Collecting();
+        $this->assertFalse($errorHandler->hasErrors());
+        $this->assertEmpty($errorHandler->getErrors());
+
+        $errorHandler->handleError($e1 = new Error('Test 1'));
+        $errorHandler->handleError($e2 = new Error('Test 2'));
+        $this->assertTrue($errorHandler->hasErrors());
+        $this->assertSame([$e1, $e2], $errorHandler->getErrors());
+
+        $errorHandler->clearErrors();
+        $this->assertFalse($errorHandler->hasErrors());
+        $this->assertEmpty($errorHandler->getErrors());
+    }
+}

lib/nikic/php-parser/test/PhpParser/ErrorHandler/ThrowingTest.php

@@ -0,0 +1,16 @@
+<?php
+
+namespace PhpParser\ErrorHandler;
+
+use PhpParser\Error;
+
+class ThrowingTest extends \PHPUnit_Framework_TestCase {
+    /**
+     * @expectedException \PhpParser\Error
+     * @expectedExceptionMessage Test
+     */
+    public function testHandleError() {
+        $errorHandler = new Throwing();
+        $errorHandler->handleError(new Error('Test'));
+    }
+}