feat: Remove early return for NoOpStreamedSpan in set_transaction_name

[alexander-alderman-webb]

Description

The follow-up PR fails with this otherwise

_ test_catch_exceptions[True-/some_url-ZeroDivisionError-division by zero-tests.integrations.litestar.test_litestar.litestar_app_factory.<locals>.homepage_handler] _
tests/integrations/litestar/test_litestar.py:139: in test_catch_exceptions
    assert expected_tx_name in event["transaction"]
E   AssertionError: assert 'tests.integrations.litestar.test_litestar.litestar_app_factory.<locals>.homepage_handler' in 'http://testserver.local/some_url'

because the ASGI integration sees that the segment source is not set when the span is not sampled.

Issues

Reminders

• Please add tests to validate your changes, and lint your code using uv run ruff.
• Add GH Issue ID & Linear ID (if applicable)
• PR title should use conventional commit style (feat:, fix:, ref:, meta:)
• For external contributors: CONTRIBUTING.md, Sentry SDK development docs, Discord community

[github-actions]

Codecov Results 📊

✅ 102732 passed | ❌ 1 failed | ⏭️ 6677 skipped | Total: 109410 | Pass Rate: 93.9% | Execution Time: 361m 36s

📊 Comparison with Base Branch

Metric	Change
Total Tests	📉 -1251
Passed Tests	📉 -1252
Failed Tests	📈 +1
Skipped Tests	—

➕ New Tests (1)

View new tests

• test_binary_content_encoding_image_url[True-False]
  • File: tests.integrations.litellm.test_litellm
  • Status: ❌ Failing

❌ Failed Tests

test_binary_content_encoding_image_url[True-False]

File: tests.integrations.litellm.test_litellm
Suite: py3.10-litellm-v1.89.7
Error: pytest.PytestUnraisableExceptionWarning: Exception ignored in thread started by: <bound method Thread._bootstrap of <Thread(Thread-65 (_flush_loop), started daemon 139737532044864)>> Enable tracemalloc to get traceback where the object was allocated. See https://docs.pytest.org/en/stable/how-to/capture-warnings.html#resource-warnings for more info.

Stack Trace

/usr/lib/python3.10/threading.py:973: in _bootstrap
    self._bootstrap_inner()
/usr/lib/python3.10/threading.py:1011: in _bootstrap_inner
    _sys.settrace(_trace_hook)
E   RuntimeError: Cannot install a trace function while another trace function is being installed

The above exception was the direct cause of the following exception:
.tox/py3.10-litellm-v1.89.7/lib/python3.10/site-packages/_pytest/runner.py:361: in from_call
    result: TResult | None = func()
.tox/py3.10-litellm-v1.89.7/lib/python3.10/site-packages/_pytest/runner.py:250: in <lambda>
    lambda: runtest_hook(item=item, **kwds),
.tox/py3.10-litellm-v1.89.7/lib/python3.10/site-packages/pluggy/_hooks.py:512: in __call__
    return self._hookexec(self.name, self._hookimpls.copy(), kwargs, firstresult)
.tox/py3.10-litellm-v1.89.7/lib/python3.10/site-packages/pluggy/_manager.py:120: in _hookexec
    return self._inner_hookexec(hook_name, methods, kwargs, firstresult)
.tox/py3.10-litellm-v1.89.7/lib/python3.10/site-packages/_pytest/logging.py:865: in pytest_runtest_call
    yield
.tox/py3.10-litellm-v1.89.7/lib/python3.10/site-packages/pluggy/_callers.py:53: in run_old_style_hookwrapper
    return result.get_result()
.tox/py3.10-litellm-v1.89.7/lib/python3.10/site-packages/pluggy/_callers.py:38: in run_old_style_hookwrapper
    res = yield
.tox/py3.10-litellm-v1.89.7/lib/python3.10/site-packages/_pytest/capture.py:900: in pytest_runtest_call
    return (yield)
.tox/py3.10-litellm-v1.89.7/lib/python3.10/site-packages/_pytest/skipping.py:268: in pytest_runtest_call
    return (yield)
.tox/py3.10-litellm-v1.89.7/lib/python3.10/site-packages/_pytest/unraisableexception.py:183: in pytest_runtest_call
    collect_unraisable(item.config)
.tox/py3.10-litellm-v1.89.7/lib/python3.10/site-packages/_pytest/unraisableexception.py:79: in collect_unraisable
    raise errors[0]
.tox/py3.10-litellm-v1.89.7/lib/python3.10/site-packages/_pytest/unraisableexception.py:67: in collect_unraisable
    warnings.warn(pytest.PytestUnraisableExceptionWarning(msg))
E   pytest.PytestUnraisableExceptionWarning: Exception ignored in thread started by: <bound method Thread._bootstrap of <Thread(Thread-65 (_flush_loop), started daemon 139737532044864)>>
E   Enable tracemalloc to get traceback where the object was allocated.
E   See https://docs.pytest.org/en/stable/how-to/capture-warnings.html#resource-warnings for more info.

✅ Patch coverage is 100.00%. Project has 2478 uncovered lines.
✅ Project coverage is 90.15%. Comparing base (base) to head (head).

Coverage diff

@@            Coverage Diff             @@
##          main       #PR       +/-##
==========================================
+ Coverage    90.15%    90.15%        —%
==========================================
  Files          193       193         —
  Lines        25147     25151        +4
  Branches      9136      9138        +2
==========================================
+ Hits         22669     22673        +4
- Misses        2478      2478         —
- Partials      1431      1432        +1

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