Returns the inline definition.
Definition $definition:
array
private function getInlinedDefinitions(Definition $definition) {
  if (false === $this->inlinedDefinitions
    ->contains($definition)) {
    $definitions = array_merge($this
      ->getDefinitionsFromArguments($definition
      ->getArguments()), $this
      ->getDefinitionsFromArguments($definition
      ->getMethodCalls()), $this
      ->getDefinitionsFromArguments($definition
      ->getProperties()));
    $this->inlinedDefinitions
      ->offsetSet($definition, $definitions);
    return $definitions;
  }
  return $this->inlinedDefinitions
    ->offsetGet($definition);
}