private static boolean treesAreReallyEqual(@NotNull SerializedStubTree newSerializedStubTree,
                                             @NotNull SerializedStubTree currentTree) {
    if (newSerializedStubTree.equals(currentTree)) {
      return true;
    }
    if (IndexDebugProperties.DEBUG) {
      reportStubTreeHashCollision(newSerializedStubTree, currentTree);
    }
    return false;
  }
private static boolean treesAreReallyEqual(@NotNull SerializedStubTree newSerializedStubTree,
                                             @NotNull SerializedStubTree currentTree)