Merge branch '2.7' into 2.8

* 2.7:
  Fix backport
  [travis] Upgrade phpunit wrapper & hirak/prestissimo
  [Bridge\PhpUnit] Workaround old phpunit bug, no colors in weak mode, add tests
  [PropertyAccess] Fix isPropertyWritable not using the reflection cache
  [PropertyAccess] Backport fixes from 2.7
  [Validator] use correct term for a property in docblock (not "option")
  [Routing] small refactoring for scheme requirement
  [PropertyAccess] Remove most ref mismatches to improve perf
  [Validator] EmailValidator cannot extract hostname if email contains multiple @ symbols
  [NumberFormatter] Fix invalid numeric literal on PHP 7
  [Process] fix docblock syntax
  Use XML_ELEMENT_NODE in nodeType check
  [PropertyAccess] Reduce overhead of UnexpectedTypeException tracking
  [PropertyAccess] Throw an UnexpectedTypeException when the type do not match
  [FrameworkBundle] Add tests for the Controller class
  [FrameworkBundle] Add tests for the Controller class
  [Process] getIncrementalOutput should work without calling getOutput

Conflicts:
	src/Symfony/Bridge/PhpUnit/DeprecationErrorHandler.php
	src/Symfony/Bridge/PhpUnit/TextUI/Command.php
	src/Symfony/Bundle/FrameworkBundle/Tests/Controller/ControllerTest.php

Author: nicolas-grekas

Generator/UrlGenerator.php

@@ -216,16 +216,7 @@ protected function doGenerate($variables, $defaults, $requirements, $tokens, $pa
             $scheme = $this->context->getScheme();
 
             if ($requiredSchemes) {
-                $schemeMatched = false;
-                foreach ($requiredSchemes as $requiredScheme) {
-                    if ($scheme === $requiredScheme) {
-                        $schemeMatched = true;
-
-                        break;
-                    }
-                }
-
-                if (!$schemeMatched) {
+                if (!in_array($scheme, $requiredSchemes, true)) {
                     $referenceType = self::ABSOLUTE_URL;
                     $scheme = current($requiredSchemes);
                 }