Automatically applying components based on crash stacktrace and information from OWNERS files.

If this is incorrect, please apply the Test-Predator-Wrong-Components label.

Automatically assigning owner based on suspected regression changelist https://chromium.googlesource.com/v8/v8/+/d97d095a3196ee5270358c0192859bd4d9333861 ([turbolizer] Show for each node from which node it was created from).

If this is incorrect, please let us know why and apply the Test-Predator-Wrong-CLs label. If you aren't the correct owner for this issue, please unassign yourself as soon as possible so it can be re-triaged.

The following revision refers to this bug:
  https://chromium.googlesource.com/v8/v8.git/+/72e062aa8293562951dffdb435b52687b66a0b67

commit 72e062aa8293562951dffdb435b52687b66a0b67
Author: Stephan Herhut <herhut@chromium.org>
Date: Mon Jun 11 13:20:58 2018

[wasm] Correctly init zone in PipelineData

The graph_zone_ field in PipelineData was initialized to nullptr
instead of the correct zone when running the wasm compilation pipeline.
Now it is set to the actual zone of the graph that is being compiled.

Bug:  chromium:844591 
Change-Id: I8d9a688a292471a45dedcd01b03244baed60e378
Reviewed-on: https://chromium-review.googlesource.com/1095254
Reviewed-by: Sigurd Schneider <sigurds@chromium.org>
Commit-Queue: Stephan Herhut <herhut@chromium.org>
Cr-Commit-Position: refs/heads/master@{#53638}
[modify] https://crrev.com/72e062aa8293562951dffdb435b52687b66a0b67/src/compiler/pipeline.cc

ClusterFuzz has detected this issue as fixed in range 53637:53638.

Detailed report: https://clusterfuzz.com/testcase?key=5738724718280704

Fuzzer: mbarbella_js_mutation
Job Type: linux_ubsan_vptr_d8
Platform Id: linux

Crash Type: Null-dereference READ
Crash Address: 0x000000000038
Crash State:
  v8::internal::Zone::New
  v8::internal::compiler::AddReducer
  v8::internal::compiler::PipelineWasmCompilationJob::ExecuteJobImpl
  
Sanitizer: undefined (UBSAN)

Regressed: https://clusterfuzz.com/revisions?job=linux_ubsan_vptr_d8&range=53257:53258
Fixed: https://clusterfuzz.com/revisions?job=linux_ubsan_vptr_d8&range=53637:53638

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=5738724718280704

See https://github.com/google/clusterfuzz-tools 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 5738724718280704 is verified as fixed, so closing issue as verified.

If this is incorrect, please add ClusterFuzz-Wrong label and re-open the issue.