This is a reland of 78f8ff9568 Original change's description: > [preparser] Refactor VariableProxies to use ThreadedLists interface > > Bug: v8:7926 > Change-Id: Idfc520b67696c8a838a0ee297ea392d416dd899e > Reviewed-on: https://chromium-review.googlesource.com/1206292 > Commit-Queue: Florian Sattler <sattlerf@google.com> > Reviewed-by: Igor Sheludko <ishell@chromium.org> > Reviewed-by: Marja Hölttä <marja@chromium.org> > Reviewed-by: Camillo Bruni <cbruni@chromium.org> > Cr-Commit-Position: refs/heads/master@{#55801} Bug: v8:7926, chromium:883059 Change-Id: Icaa496be1b4df8306fe6d623e5825909d7b0c9c5 Reviewed-on: https://chromium-review.googlesource.com/1221529 Commit-Queue: Florian Sattler <sattlerf@google.com> Reviewed-by: Camillo Bruni <cbruni@chromium.org> Reviewed-by: Marja Hölttä <marja@chromium.org> Cr-Commit-Position: refs/heads/master@{#55833}
78f8ff9568