Used by the new Vulkan debugger.

Bug: b/145351270
Change-Id: I4419fa208b52ed2db17422e3c14fe01dfb55cde9
Reviewed-on: https://swiftshader-review.googlesource.com/c/SwiftShader/+/38889
Kokoro-Presubmit: kokoro <noreply+kokoro@google.com>
Reviewed-by: Nicolas Capens <nicolascapens@google.com>
Tested-by: Ben Clayton <bclayton@google.com>