SKIP: FAILED Validation Failure: #include using namespace metal; struct tint_symbol { float4 value [[position]]; }; void ignore_ad88be() { (void) arg_0; } vertex tint_symbol vertex_main() { ignore_ad88be(); tint_symbol const tint_symbol_1 = {.value=float4()}; return tint_symbol_1; } fragment void fragment_main() { ignore_ad88be(); return; } kernel void compute_main() { ignore_ad88be(); return; } tint_BhQwjP.metal:9:10: error: use of undeclared identifier 'arg_0' (void) arg_0; ^ 1 error generated.