perf(test): lower base overhead to <1ms

[bartlomieju]

This PR changes how op sanitizer is run to only wait for an event loop tick
if there are unresolved ops. In most cases tests are finishing okay and don't
have leaky ops (unless there are workers or timers) involved. In such case
we can skip waiting for the macrotask callback and lower the base overhead
from ~3ms to ~1ms.

[aapoalas]

Tests fail :(

[nayeemrmn]

Turns out the Deno.test("uncaught error", () => { Promise.reject(...) }) test case was depending on the op sanitizer delay. This is addressed by denoland/deno_core#137.

[nayeemrmn]

failures:
    integration::js_unit_tests::fetch_test
    integration::js_unit_tests::http_test
    integration::js_unit_tests::serve_test
    integration::node_compat_tests::node_test_module

For integration::node_compat_tests::node_test_module see the patch in denoland/deno_core#137 (comment). The rest seem to be from this.

[bartlomieju]

@nayeemrmn any chance you could try to debug the problem?

[bartlomieju]

Closing in favor of #20501