The new binary has the ability to optimize SPIR-V code.

Bug: angleproject:3432
Change-Id: I5953be6f207f153baaf2efe17380448aff374d60
Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/1620913Reviewed-by: Jamie Madill <jmadill@chromium.org>
Commit-Queue: Shahbaz Youssefi <syoussefi@chromium.org>