Function callerCount

__tests__/sync.test.ts:759–764

(fnName: string)

    });

    function callerCount(fnName: string): number {
      const results = cg.searchNodes(fnName);
      const def = results.map(r => r.node).find(n => n.kind === 'function' && n.name === fnName);
      if (!def) return -1;
      return cg.getCallers(def.id).length;
    }

    it('preserves incoming cross-file calls edges when the callee file is re-indexed', async () => {
      // Baseline: both callees have one cross-file caller each.