[TypeScript] func_start names a quoted method async "array-objects"() {} as async #3760

What

// packages/bench/compile-vs-arktype.ts:414 (colinhacks/zod@2bf7b0630d53)
  async "array-objects"() {
    await metabench("array of 50 objects", { ... }).run();
  },

The engine extracts this object-literal method as a function named async. The name is a string-literal key ("array-objects"), and the modifier keyword is captured instead. Calls from its body are attributed to a unit called async (found as an unmapped caller in the new Level 2 TypeScript check, tests/tools/call_graph_resolution.py typescript, branch claude/optimistic-heisenberg-bta91d). async then also enters the repo's definition index as a callable name.

Expected

The unit is named array-objects (the string key without its quotes), or at least never a modifier keyword (async, static, get, set, *). The same check probably applies to JavaScript's func_start. Worth adding a valid-case entry to tests/extraction/languages/test_typescript.py (and test_javascript.py) per tests/extraction/how_to_harden_extraction.md.