Merge branch '2.8' into 3.2

* 2.8:
  Fixed the flickering when loading complex profiler panels
  [DI] Add missing check in PhpDumper
  [Serializer] XmlEncoder: fix negative int and large numbers handling
  [Console] Fix dispatching throwables from ConsoleEvents::COMMAND

Author: nicolas-grekas

Dumper/PhpDumper.php

@@ -1349,9 +1349,12 @@ private function dumpValue($value, $interpolate = true)
             if (null !== $this->definitionVariables && $this->definitionVariables->contains($value)) {
                 return $this->dumpValue($this->definitionVariables->offsetGet($value), $interpolate);
             }
-            if (count($value->getMethodCalls()) > 0) {
+            if ($value->getMethodCalls()) {
                 throw new RuntimeException('Cannot dump definitions which have method calls.');
             }
+            if ($value->getProperties()) {
+                throw new RuntimeException('Cannot dump definitions which have properties.');
+            }
             if (null !== $value->getConfigurator()) {
                 throw new RuntimeException('Cannot dump definitions which have a configurator.');
             }