Yet another OSL fix: Some functions are missing stubs that were not used in old OSL implementation yet.
Yet another OSL fix: Some functions are missing stubs that were not used in old OSL implementation yet.

pyrochlore/cycles,tangent-opensource/coreBlackbird,tangent-opensource/coreBlackbird,tangent-opensource/coreBlackbird,pyrochlore/cycles,pyrochlore/cycles