Fuzzer: Stop emitting nullable stringviews #6574
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| Fuzzer hit this again after 6,000 iterations. I couldn't easily figure out how it managed to create this situation - might be related to existing workarounds for other things - so I added a line to ignore this error. If it happens only once in a few thousand iterations that is negligible (and we have tracking of how often each such error is ignored). |
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As of
https://chromium-review.googlesource.com/c/v8/v8/+/5471674
V8 requires stringviews to be non-nullable. It might be possible to make that
change in our IR, or to remove views entirely, but for now this PR makes the
fuzzer stop emitting nullable stringviews as a workaround to allow us to fuzz
current V8.
Without this the fuzzer errors after just a few dozen, and after it I've gone
several thousand without issue (though in theory this PR might miss some
path that can emit a nullable stringview).