Duplicate reused symbol table entries. BUG=angle:651 Change-Id: Ifce3c19d41a0a5a5ca5ee90ede528adf397d1da5 Reviewed-on: https://chromium-review.googlesource.com/204290 Tested-by: Nicolas Capens <nicolascapens@chromium.org> Reviewed-by: Jamie Madill <jmadill@chromium.org> Reviewed-by: Shannon Woods <shannonwoods@chromium.org>