SKIP: FAILED Validation Failure: #include using namespace metal; void textureSample_6717ca() { float4 res = arg_0.sample(arg_1, float2(), 1); } fragment void fragment_main() { textureSample_6717ca(); return; } tint_u9HsAP.metal:5:16: error: use of undeclared identifier 'arg_0' float4 res = arg_0.sample(arg_1, float2(), 1); ^ tint_u9HsAP.metal:5:29: error: use of undeclared identifier 'arg_1' float4 res = arg_0.sample(arg_1, float2(), 1); ^ 2 errors generated.