public void processInjectableElements(@NotNull Collection<? extends PsiElement> in, @NotNull Processor<? super PsiElement> processor) {
    ClassMapCachingNulls<MultiHostInjector> map = getInjectorMap();
    for (PsiElement element : in) {
      if (map.get(element.getClass()) != null) {
        processor.process(element);
      }
    }
  }
public void processInjectableElements(@NotNull Collection<? extends PsiElement> in, @NotNull Processor<? super PsiElement> processor)