Function generate_unique_node_name 

pub fn generate_unique_node_name(
    node_name: impl Into<String>,
    validation_context: Rc<RefCell<ValidationContext>>,
) -> String

Generates a unique name from a base name and the names already present in a ValidationContext.

Uses generate_unique_node_name_from_names() internally to ensure uniqueness. Logs a warning if the generated name differs from the original due to duplicates.