Function resolveCppCallResultType

src/resolution/name-matcher.ts:819–849

* Infer the class produced by a C++ call/construction expression, using return * types captured at extraction (#645). Handles, in order: * - `make_unique ()` / `make_shared ()` → T * - single-level member call `recv.method()` → recv's type, then method's return * - `Class:

(
  inner: string,
  ref: UnresolvedRef,
  context: ResolutionContext,
  depth = 0,
)

 * exists on the result before creating an edge, so a wrong guess stays silent.
 */
function resolveCppCallResultType(
  inner: string,
  ref: UnresolvedRef,
  context: ResolutionContext,
  depth = 0,
): string | null {
  if (depth > 3) return null; // guard against pathological mutual recursion
  const expr = inner.trim();

  const make = expr.match(/(?:^|::)(?:make_unique|make_shared)\s*<\s*([A-Za-z_]\w*)/);
  if (make) return make[1] ?? null;

  // Single-level member call `recv.method` (the `manager.view().render()` shape).
  const dotIdx = expr.lastIndexOf('.');
  if (dotIdx > 0) {
    const recv = expr.slice(0, dotIdx);
    const method = expr.slice(dotIdx + 1);
    if (recv.includes('.') || recv.includes('(') || recv.includes('::')) return null; // single level only
    const recvType = inferCppReceiverType(recv, ref, context, depth + 1);
    if (!recvType) return null;
    return lookupCalleeReturnType(`${recvType}::${method}`, ref, context);
  }

  const ret = lookupCalleeReturnType(expr, ref, context);
  if (ret) return ret;

  // Direct construction — the callee itself names a class/struct.
  if (cppClassExists(expr, ref, context)) return cppLastSegment(expr);

  return null;
}

/**
 * Recover the type of an `auto`-declared local from its initializer on the