SKIP: FAILED Validation Failure: #include using namespace metal; void textureSample_6e64fb() { float4 res = arg_0.sample(arg_1, 1.0f); } fragment void fragment_main() { textureSample_6e64fb(); return; } tint_Gw7uQt.metal:5:16: error: use of undeclared identifier 'arg_0' float4 res = arg_0.sample(arg_1, 1.0f); ^ tint_Gw7uQt.metal:5:29: error: use of undeclared identifier 'arg_1' float4 res = arg_0.sample(arg_1, 1.0f); ^ 2 errors generated.