Avoid ignoring unsuccessful routine creation
Avoid ignoring unsuccessful routine creation

Unsuccessful routine creation is a bug that must be caught instead of
being silently ignored.

Bug: b/148295813
Change-Id: Ic718f0420d6833362944c96a3d172813eba3c207
Reviewed-on: https://swiftshader-review.googlesource.com/c/SwiftShader/+/40568
Tested-by: Nicolas Capens <51edc787c30f24c4904e8ffbb5523c3a9f7a451d@google.com>
Kokoro-Presubmit: kokoro <2ac7b1f3fa578934c95181d4272be0d3bca00121@google.com>
Reviewed-by: Antonio Maiorano <86d87a6550afb6b07035c9743fa181900589f7e0@google.com>

bkaradzic/SwiftShader,google/swiftshader,bkaradzic/SwiftShader,google/swiftshader,bkaradzic/SwiftShader,bkaradzic/SwiftShader,google/swiftshader,bkaradzic/SwiftShader