Merge branch '3.4' into 4.4

* 3.4:
  [PhpUnitBridge] fix bad detection of unsilenced deprecations
  [HttpKernel] Fix error logger when stderr is redirected to /dev/null (FPM)

Author: nicolas-grekas

DeprecationErrorHandler.php

@@ -113,7 +113,7 @@ public static function collectDeprecations($outputFile)
                 $filesStack[] = $frame['file'];
             }
 
-            $deprecations[] = [error_reporting(), $msg, $file, $filesStack];
+            $deprecations[] = [error_reporting() & $type, $msg, $file, $filesStack];
 
             return null;
         });
@@ -143,7 +143,7 @@ public function handleError($type, $msg, $file, $line, $context = [])
             $method = $deprecation->originatingMethod();
             $msg = $deprecation->getMessage();
 
-            if (0 !== error_reporting()) {
+            if (error_reporting() & $type) {
                 $group = 'unsilenced';
             } elseif ($deprecation->isLegacy()) {
                 $group = 'legacy';

Legacy/SymfonyTestsListenerTrait.php

@@ -310,7 +310,7 @@ public function handleError($type, $msg, $file, $line, $context = [])
         if (\is_array($parsedMsg)) {
             $msg = $parsedMsg['deprecation'];
         }
-        if (error_reporting()) {
+        if (error_reporting() & $type) {
             $msg = 'Unsilenced deprecation: '.$msg;
         }
         $this->gatheredDeprecations[] = $msg;