Merge branch '5.1'

* 5.1:
  [HttpClient] Support for cURL handler objects.
  [HttpClient] unset activity list when creating CurlResponse
  Fixed typo in test name
  [DI] Fix call to sprintf in ServicesConfigurator::stack()
  add .body wrapper element
  [HttpFondation] Change file extension of "audio/mpeg" from "mpga" to "mp3"
  [VarDumper] Support for cURL handler objects.
  Check whether path is file in DataPart::fromPath()
  [DI][FrameworkBundle] Remove whitelist occurrences
  Avoid accessibility errors on debug toolbar
  Resolve event bubbling logic in a compiler pass
  update cookie test

Author: fabpot

Loader/Configurator/ServicesConfigurator.php

@@ -150,7 +150,7 @@ final public function stack(string $id, array $services): AliasConfigurator
 
                 $services[$i] = $definition;
             } elseif (!$service instanceof ReferenceConfigurator) {
-                throw new InvalidArgumentException(sprintf('"%s()" expects a list of definitions as returned by "%s()" or "%s()", "%s" given at index "%s" for service "%s".', __METHOD__, InlineServiceConfigurator::FACTORY, ReferenceConfigurator::FACTORY, $service instanceof AbstractConfigurator ? $service::FACTORY.'()' : get_debug_type($service)), $i, $id);
+                throw new InvalidArgumentException(sprintf('"%s()" expects a list of definitions as returned by "%s()" or "%s()", "%s" given at index "%s" for service "%s".', __METHOD__, InlineServiceConfigurator::FACTORY, ReferenceConfigurator::FACTORY, $service instanceof AbstractConfigurator ? $service::FACTORY.'()' : get_debug_type($service), $i, $id));
             }
         }