Compiled test.osl -> test.oso
WARNING: Optimization warning:
  group:  MyGroup
  layer:  TestLayer
  source: test.osl:17
  issue:  texture(): texture name cannot be reduced to a constant.
WARNING: Optimization warning:
  group:  MyGroup
  layer:  TestLayer
  source: test.osl:24
  issue:  gettextureinfo(): texture name cannot be reduced to a constant.
C = 1 0 0
exists = 0
