test/tint/identifiers/underscore/prefix/upper/struct.wgsl

@group(0) @binding(0) var<storage, read_write> s: i32;

struct A {
  B : i32,
};
struct _A {
  _B : i32,
};

@compute @workgroup_size(1)
fn f() {
  let c = _A();
  let d = c._B;

  s = c._B + d;
}