Symbol = namespace::Class::method via recursive build_blocks. namespace_definition
pushes namespace name (anonymous → <anonymous>). nested_namespace_specifier
(outer::inner) flattens all segments and pushes them. class_specifier / struct_specifier
(named) emit class unit + recurse with class name pushed. function_definition emits
method unit; symbol resolution unpacks declarator chain (pointer_declarator /
reference_declarator → function_declarator → identifier / field_identifier /
qualified_identifier / operator_name / destructor_name).
operator_cast (conversion operators, e.g. operator bool) handled as a direct
declarator kind on function_definition. template_declaration recurses with same
prefix (template params NOT in symbol). enum_specifier + concept_definition emit
type-level units. linkage_specification (extern "C") recurses into body with same
prefix. Other top-level nodes → <top-level> glue.
All 15 unit tests pass; build and clippy clean.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
