SKIP: FAILED

#include <metal_stdlib>
using namespace metal;

void f() {
  int const a = 0;
  int const b = a;
  int const a = 0;
  int const b = a;
}
program_source:7:13: error: redefinition of 'a'
  int const a = 0;
            ^
program_source:5:13: note: previous definition is here
  int const a = 0;
            ^
program_source:8:13: error: redefinition of 'b'
  int const b = a;
            ^
program_source:6:13: note: previous definition is here
  int const b = a;
            ^