private SingleServingGosuClassLoader getOrCreateSingleServingLoader(
     ICompilableTypeInternal gsClass) {
   ICompilableTypeInternal enclosingType = gsClass.getEnclosingType();
   ClassLoader enclosingLoader =
       isOldStyleGosuAnnotationExpression(gsClass) ? null : getClassLoader(enclosingType);
   if (enclosingLoader instanceof SingleServingGosuClassLoader) {
     return (SingleServingGosuClassLoader) enclosingLoader;
   }
   SingleServingGosuClassLoader namespaceLoader =
       getDiscreteNamespaceLoader(gsClass.getNamespace());
   return namespaceLoader == null ? new SingleServingGosuClassLoader(this) : namespaceLoader;
 }
 private boolean isEnclosingTypeInSingleServingLoader(ICompilableTypeInternal gsClass) {
   ICompilableTypeInternal enclosingType = gsClass.getEnclosingType();
   ClassLoader enclosingLoader = getClassLoader(enclosingType);
   return enclosingLoader instanceof SingleServingGosuClassLoader;
 }