Commits on Mar 20, 2018

1. deps: V8: backport 596d55a from upstream …

   Did not remove ActivationsFinder from `src/runtime/runtime-compiler.cc`
   as in the original commit as the Class is still being used prior to
   f0acede landing
   
   Original Commit Message:
   
       Deoptimization and multithreading.
   
       When using Lockers and Unlockers it is possible to create a
       scenario where multiple threads point to the same optimized
       code object. When that happens, if one of the threads triggers
       deoptimization, then the stack replacement needs to happen in
       the stacks of all threads.
       With this CL, the deoptimizer visits all threads to do so.
       The CL also adds three tests where V8 used to crash due to this
       issue.
   
       Bug: v8:6563
       Change-Id: I74e9af472d4833aa8d13e579df45133791f6a503
       Reviewed-on: https://chromium-review.googlesource.com/670783
       Reviewed-by: Jaroslav Sevcik <jarin@chromium.org>
       Commit-Queue: Juliana Patricia Vicente Franco <jupvfranco@google.com>
       Cr-Commit-Position: refs/heads/master@{nodejs#48060}
   
   Refs: v8/v8@596d55a
   Refs: v8/v8@f0acede
   Fixes: nodejs#19274

   

   MylesBorins committed Mar 20, 2018
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