Inspector pause at beginning of recently parsed function will crash

[mmarchini]

This is a bug upstream which started once we landed V8 8.1. Opening this issue to keep track of the upstream bug, so we remember to backport once it's fixed.

The bug is unlikely to affect users unless they are using the Inspector protocol to automatically pause a script. The bug happens when the inspector pauses right before a function parsed and compiled with CompileFuncionInContext (and potentially through other means) runs. We have two flaky tests because of this bug.

V8 minimal repro: https://chromium-review.googlesource.com/c/v8/v8/+/2080072
Upstream bug: https://bugs.chromium.org/p/v8/issues/detail?id=10287
First V8 commit with the issue (found with git bisect): https://chromium-review.googlesource.com/c/v8/v8/+/1903440

[targos]

Some background in #32383

[targos]

Seems to still be an issue. Now tracked in https://bugs.chromium.org/p/chromium/issues/detail?id=1246905