I couldn't find any tests that did not rely on another feature being implemented.

Bug: b/131667866
Change-Id: Ic872c06865b9c7a2bafffbe733f79718ba1505e5
Reviewed-on: https://swiftshader-review.googlesource.com/c/SwiftShader/+/30209
Presubmit-Ready: Ben Clayton <bclayton@google.com>
Reviewed-by: Nicolas Capens <nicolascapens@google.com>
Tested-by: Ben Clayton <bclayton@google.com>
Kokoro-Presubmit: kokoro <noreply+kokoro@google.com>