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Automatically assigning owner based on suspected regression changelist https://chromium.googlesource.com/v8/v8/+/88c49eac28717322516c3baa01f828fa6e697531 ([parser] Remove RETURN_IF* part 10).

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The following revision refers to this bug:
  https://chromium.googlesource.com/v8/v8.git/+/dc70cb6694e10067f77da72b3c55b479dfba4838

commit dc70cb6694e10067f77da72b3c55b479dfba4838
Author: Toon Verwaest <verwaest@chromium.org>
Date: Mon Oct 29 09:26:04 2018

[parser] Only throw spread class property error if it's the first error

Bug:  chromium:899474 , v8:8363,  v8:7926 
Change-Id: I89680d35ab2557f5a2b2282813362f5f654862a9
Reviewed-on: https://chromium-review.googlesource.com/c/1304314
Commit-Queue: Toon Verwaest <verwaest@chromium.org>
Reviewed-by: Marja Hölttä <marja@chromium.org>
Cr-Commit-Position: refs/heads/master@{#57058}
[modify] https://crrev.com/dc70cb6694e10067f77da72b3c55b479dfba4838/src/parsing/parser-base.h
[add] https://crrev.com/dc70cb6694e10067f77da72b3c55b479dfba4838/test/mjsunit/regress/regress-899474.js

ClusterFuzz has detected this issue as fixed in range 603474:603476.

Detailed report: https://clusterfuzz.com/testcase?key=6480476938960896

Fuzzer: libFuzzer_v8_fully_instrumented_fuzzer
Job Type: libfuzzer_chrome_ubsan
Platform Id: linux

Crash Type: Null-dereference READ
Crash Address: 0x000000000000
Crash State:
  v8::internal::AstNode::position
  v8::internal::ParserBase<v8::internal::Parser>::ParseClassPropertyDefinition
  v8::internal::ParserBase<v8::internal::Parser>::ParseClassLiteral
  
Sanitizer: undefined (UBSAN)

Regressed: https://clusterfuzz.com/revisions?job=libfuzzer_chrome_ubsan&range=603295:603298
Fixed: https://clusterfuzz.com/revisions?job=libfuzzer_chrome_ubsan&range=603474:603476

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=6480476938960896

See https://chromium.googlesource.com/chromium/src/+/master/testing/libfuzzer/reference.md for more information.

If you suspect that the result above is incorrect, try re-doing that job on the test case report page.

ClusterFuzz testcase 6480476938960896 is verified as fixed, so closing issue as verified.

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