yii\base\ErrorHandler::handleError() adjusted keeping native error processing on error reporting miss match.

framework/base/ErrorHandler.php

@@ -125,6 +125,7 @@ abstract class ErrorHandler extends Component
      * @param string $message the error message.
      * @param string $file the filename that the error was raised in.
      * @param integer $line the line number the error was raised at.
+     * @return boolean whether the normal error handler continues.
      *
      * @throws ErrorException
      */
@@ -150,6 +151,7 @@ abstract class ErrorHandler extends Component
 
             throw $exception;
         }
+        return false;
     }
 
     /**