Support context manager protocol for traced iterator APIs #10576

All 19 tests pass in 7m 35s

12 files ±0 12 suites ±0 7m 35s ⏱️ +4s
19 tests ±0 19 ✅ ±0 0 💤 ±0 0 ❌ ±0
228 runs ±0 228 ✅ ±0 0 💤 ±0 0 ❌ ±0

Results for commit ed54c05. ± Comparison against earlier commit 7789b89.