[HttpClient] fix casting TraceableResponse to php streams

Author: nicolas-grekas

Internal/HttplugWaitLoop.php

@@ -17,6 +17,7 @@
 use Psr\Http\Message\StreamFactoryInterface;
 use Symfony\Component\HttpClient\Response\ResponseTrait;
 use Symfony\Component\HttpClient\Response\StreamWrapper;
+use Symfony\Component\HttpClient\Response\TraceableResponse;
 use Symfony\Contracts\HttpClient\Exception\TransportExceptionInterface;
 use Symfony\Contracts\HttpClient\HttpClientInterface;
 use Symfony\Contracts\HttpClient\ResponseInterface;
@@ -119,7 +120,7 @@ public function createPsr7Response(ResponseInterface $response, bool $buffer = f
             }
         }
 
-        if (isset(class_uses($response)[ResponseTrait::class])) {
+        if ($response instanceof TraceableResponse || isset(class_uses($response)[ResponseTrait::class])) {
             $body = $this->streamFactory->createStreamFromResource($response->toStream(false));
         } elseif (!$buffer) {
             $body = $this->streamFactory->createStreamFromResource(StreamWrapper::createResource($response, $this->client));

Psr18Client.php

@@ -29,6 +29,7 @@
 use Psr\Http\Message\UriInterface;
 use Symfony\Component\HttpClient\Response\ResponseTrait;
 use Symfony\Component\HttpClient\Response\StreamWrapper;
+use Symfony\Component\HttpClient\Response\TraceableResponse;
 use Symfony\Contracts\HttpClient\Exception\TransportExceptionInterface;
 use Symfony\Contracts\HttpClient\HttpClientInterface;
 
@@ -104,7 +105,7 @@ public function sendRequest(RequestInterface $request): ResponseInterface
                 }
             }
 
-            $body = isset(class_uses($response)[ResponseTrait::class]) ? $response->toStream(false) : StreamWrapper::createResource($response, $this->client);
+            $body = $response instanceof TraceableResponse || isset(class_uses($response)[ResponseTrait::class]) ? $response->toStream(false) : StreamWrapper::createResource($response, $this->client);
             $body = $this->streamFactory->createStreamFromResource($body);
 
             if ($body->isSeekable()) {

Response/StreamWrapper.php

@@ -49,7 +49,7 @@ class StreamWrapper
      */
     public static function createResource(ResponseInterface $response, HttpClientInterface $client = null)
     {
-        if (\is_callable([$response, 'toStream']) && isset(class_uses($response)[ResponseTrait::class])) {
+        if ($response instanceof TraceableResponse || (\is_callable([$response, 'toStream']) && isset(class_uses($response)[ResponseTrait::class]))) {
             $stack = debug_backtrace(DEBUG_BACKTRACE_PROVIDE_OBJECT | DEBUG_BACKTRACE_IGNORE_ARGS, 2);
 
             if ($response !== ($stack[1]['object'] ?? null)) {