Function annotation_class_qualifier_sites 

pub fn annotation_class_qualifier_sites<'a, 'tree: 'a>(
    graph: &'a PythonGraphSource<'_>,
    python: &'a dyn PythonUsageSource,
    file: &'a ProjectFile,
    source: &'a str,
    node: Node<'tree>,
) -> impl Iterator<Item = (Node<'tree>, CodeUnit)> + 'a

Class qualifiers in lexical order. The lazy walk preserves the singleton lookup’s early stop, while a batched scan resolves the shared path once.