This reverts commit f8dc4fb6. The special state to track field selection is actually necessary to avoid reduce/reduce conflicts when array constructors are added to the grammar. BUG=angleproject:941 TEST=WebGL conformance tests, angle_unittests Change-Id: I55476483c9e83241e8978cd58f05ef303c7c8680 Reviewed-on: https://chromium-review.googlesource.com/260260Reviewed-by: Jamie Madill <jmadill@chromium.org> Reviewed-by: Nicolas Capens <capn@chromium.org> Tested-by: Olli Etuaho <oetuaho@nvidia.com>
