SKIP: FAILED

#include <metal_stdlib>
using namespace metal;

vertex float4 tint_symbol(uint b [[]]) {
  return float4(float(b));
}
program_source:4:27: error: invalid type 'uint' (aka 'unsigned int') for input declaration in a vertex function
vertex float4 tint_symbol(uint b [[]]) {
                          ^~~~~~