Regenerate the parser using Bison 2.7.12. The next patch requires a parser grammar change, but Cygwin's Bison version got updated so this separates the changes caused by that update from the ones for the actual bug fix. Change-Id: I6a596e02198725c7dbc6a1a356fdbe388ee512d7 Reviewed-on: https://chromium-review.googlesource.com/181490 Tested-by: Nicolas Capens <nicolascapens@chromium.org> Reviewed-by: Jamie Madill <jmadill@chromium.org> Commit-Queue: Jamie Madill <jmadill@chromium.org>