Function cDeclaratorIdentifier

src/extraction/tree-sitter.ts:209–229

* Resolve the declared identifier inside a C declarator. A `declaration`'s * `declarator` field nests the name through `init_declarator` (with value), * `pointer_declarator`/`array_declarator`/`parenthesized_declarator` * wrappers (each via their own `declarator` field) down to an `identifier`.

(node: SyntaxNode | null)

 * function-pointer var) — return null so it isn't extracted as a variable.
 */
function cDeclaratorIdentifier(node: SyntaxNode | null): SyntaxNode | null {
  let cur: SyntaxNode | null = node;
  let guard = 0;
  while (cur && guard++ < 12) {
    switch (cur.type) {
      case 'identifier':
        return cur;
      case 'function_declarator':
        return null;
      case 'init_declarator':
      case 'pointer_declarator':
      case 'array_declarator':
      case 'parenthesized_declarator':
        cur = getChildByField(cur, 'declarator');
        break;
      default:
        return null;
    }
  }
  return null;
}

/** First `simple_identifier` in `node`'s subtree (breadth-ish, first-found).
 * Swift's property name nests as `property_declaration → <name> pattern →