tree ba899b37aec0e22ea1c2bf9926b299ea6b12f473
parent 0647d23607012c708fc97750471ab9f141a78a8d
author dan sinclair <dsinclair@chromium.org> 1591018991 +0000
committer dan sinclair <dsinclair@google.com> 1591018991 +0000

Update WGSL grammar builtins to match spec.

This CL removes the builtin_decoration from the parser in favour of
using IDENT tokens for builtins. We still convert to an enum in the
parser and validate the value provided.

Bug: tint:41
Change-Id: If5dc3844e3325c75951e7b320c123cf66cb8e106
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/22300
Reviewed-by: David Neto <dneto@google.com>