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

Bug: angleproject:3432
Change-Id: I57ac99d2b1c5ee0678c3b6ab3db1e215a12bd08a
Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/1620915Reviewed-by: Shahbaz Youssefi <syoussefi@chromium.org>
Commit-Queue: Shahbaz Youssefi <syoussefi@chromium.org>