If the shader contains `OpenCL.DebugInfo.100` rich debug info instructions, don't also include raw SSA values in the watch window.

Bug: b/148401179
Change-Id: Id70a702bbb24fb0bf79faa55cd22c0a87c973f62
Reviewed-on: https://swiftshader-review.googlesource.com/c/SwiftShader/+/45350
Kokoro-Result: kokoro <noreply+kokoro@google.com>
Tested-by: Ben Clayton <bclayton@google.com>
Reviewed-by: Antonio Maiorano <amaiorano@google.com>