public void addElementaryChange(@NotNull ASTNode parent) {
    TreeChangeImpl existing = myChangedElements.get(parent);
    if (existing != null) {
      existing.clearCache();
    }
    else if (!integrateIntoExistingChanges(parent)) {
      mergeChange(new TreeChangeImpl(parent));
    }
  }
public void addElementaryChange(@NotNull ASTNode parent)