Merge branch '4.4' into 5.2

* 4.4:
  [DoctrineBridge] Allow bundles to define a driver type "attribute"
  fix test SocketStreamTest for Windows
  Fix issue with RequestMatcher when attribute is a closure
  [PropertyInfo] Use the right context for methods defined in traits

Author: nicolas-grekas

RequestMatcher.php

@@ -164,7 +164,11 @@ public function matches(Request $request)
         }
 
         foreach ($this->attributes as $key => $pattern) {
-            if (!preg_match('{'.$pattern.'}', $request->attributes->get($key))) {
+            $requestAttribute = $request->attributes->get($key);
+            if (!\is_string($requestAttribute)) {
+                return false;
+            }
+            if (!preg_match('{'.$pattern.'}', $requestAttribute)) {
                 return false;
             }
         }

Tests/RequestMatcherTest.php

@@ -164,6 +164,19 @@ public function testAttributes()
         $this->assertFalse($matcher->matches($request));
     }
 
+    public function testAttributesWithClosure()
+    {
+        $matcher = new RequestMatcher();
+
+        $request = Request::create('/admin/foo');
+        $request->attributes->set('_controller', function () {
+            return new Response('foo');
+        });
+
+        $matcher->matchAttribute('_controller', 'babar');
+        $this->assertFalse($matcher->matches($request));
+    }
+
     public function testIps()
     {
         $matcher = new RequestMatcher();