test/tint/identifiers/underscore/prefix/lower/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;
}