SKIP: FAILED Validation Failure: #include using namespace metal; void textureSample_51b514() { float4 res = arg_0.sample(arg_1, float2()); } fragment void fragment_main() { textureSample_51b514(); return; } tint_DjFmC0.metal:5:16: error: use of undeclared identifier 'arg_0' float4 res = arg_0.sample(arg_1, float2()); ^ tint_DjFmC0.metal:5:29: error: use of undeclared identifier 'arg_1' float4 res = arg_0.sample(arg_1, float2()); ^ 2 errors generated.