fix unit test script
comparison optimization
emit specialized literal in parser code
test reference fixed
fix optimization steps
hlsl/glsl generator handling of new literal
Fix typo in test file name
Merge pull request #3 from FishingCactus/optimization

Optimization of comparators
Merge remote-tracking branch 'origin/master' into specialized-literal
Merge pull request #4 from FishingCactus/specialized-literal

Specialized literal