deps: cherry-pick garbage collection fixes from upstream V8
Ref: https://github.com/nodejs/help/issues/917#issuecomment-339292642 Ref: https://bugs.chromium.org/p/chromium/issues/detail?id=771966
/cc @nodejs/v8
Checklist
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make -j4 test
(UNIX), orvcbuild test
(Windows) passes -
commit message follows commit guidelines
Affected core subsystem(s)
V8