The original SPIR-V is specific to a ProgramVk while the transformed
SPIR-V is specific to a ProgramExecutableVk. This CL keeps the original
SPIR-V in the ProgramVk::mOriginalShaderInfo and the transformed SPIR-V
in ProgramExecutableVk::mTransformedShaderInfo. This allows us to skip
an extra copy that was occurring during PPO link().
Bug: angleproject:4513
Test: CQ
Change-Id: I796dcd6bcfb2df08d9b8f1a5295b2821a4096f16
Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/2265484
Commit-Queue: Tim Van Patten <timvp@google.com>
Reviewed-by: Shahbaz Youssefi <syoussefi@chromium.org>
Reviewed-by: Jamie Madill <jmadill@chromium.org>
