In particular, many of these would produce an UNREACHABLE assert in libGLESv2, such as glCopyTexSubImage2D.

Bug: b/116827965
Change-Id: I719ff20b7452d0b933b8e4120abe831783844342
Reviewed-on: https://swiftshader-review.googlesource.com/c/SwiftShader/+/29048
Kokoro-Presubmit: kokoro <noreply+kokoro@google.com>
Reviewed-by: Nicolas Capens <nicolascapens@google.com>
Tested-by: Antonio Maiorano <amaiorano@google.com>