message: Add default precision qualifiers for special sampler types
diff: @@ -82,6 +82,8 @@ io::sstream& CodeGenerator::generateProlog(io::sstream& out, ShaderType type,
  const char* precision = getPrecisionQualifier(defaultPrecision, Precision::DEFAULT);
  out << "precision " << precision << " float;\n";
  out << "precision " << precision << " int;\n";
  + out << "precision lowp sampler2DArray;\n";
  + out << "precision lowp sampler3D;\n";
  out << SHADERS_COMMON_TYPES_FS_DATA;
  