SKIP: FAILED Validation Failure: #include using namespace metal; void textureSample_8522e7() { float res = arg_0.sample(arg_1, float2(), 1, int2()); } fragment void fragment_main() { textureSample_8522e7(); return; } tint_Dm6FKk.metal:5:15: error: use of undeclared identifier 'arg_0' float res = arg_0.sample(arg_1, float2(), 1, int2()); ^ tint_Dm6FKk.metal:5:28: error: use of undeclared identifier 'arg_1' float res = arg_0.sample(arg_1, float2(), 1, int2()); ^ 2 errors generated.