   LL|       |//@ edition: 2021
   LL|       |
   LL|       |// Demonstrate that `sort_subviews.py` can sort instantiation groups into a
   LL|       |// predictable order, while preserving their heterogeneous contents.
   LL|       |
   LL|      1|fn main() {
   LL|      1|    let cond = std::env::args().len() > 1;
   LL|      1|    generic_fn::<()>(cond);
   LL|      1|    generic_fn::<&'static str>(!cond);
   LL|      1|    if std::hint::black_box(false) {
   LL|      0|        generic_fn::<char>(cond);
   LL|      1|    }
   LL|      1|    generic_fn::<i32>(cond);
   LL|      1|    other_fn();
   LL|      1|}
   LL|       |
   LL|      3|fn generic_fn<T>(cond: bool) {
   LL|      3|    if cond {
   LL|      1|        println!("{}", std::any::type_name::<T>());
   LL|      2|    }
   LL|      3|}
  ------------------
  | Unexecuted instantiation: sort_groups::generic_fn::<char>
  ------------------
  | sort_groups::generic_fn::<&str>:
  |   LL|      1|fn generic_fn<T>(cond: bool) {
  |   LL|      1|    if cond {
  |   LL|      1|        println!("{}", std::any::type_name::<T>());
  |   LL|      1|    }
  |                  ^0
  |   LL|      1|}
  ------------------
  | sort_groups::generic_fn::<()>:
  |   LL|      1|fn generic_fn<T>(cond: bool) {
  |   LL|      1|    if cond {
  |   LL|      0|        println!("{}", std::any::type_name::<T>());
  |   LL|      1|    }
  |   LL|      1|}
  ------------------
  | sort_groups::generic_fn::<i32>:
  |   LL|      1|fn generic_fn<T>(cond: bool) {
  |   LL|      1|    if cond {
  |   LL|      0|        println!("{}", std::any::type_name::<T>());
  |   LL|      1|    }
  |   LL|      1|}
  ------------------
   LL|       |
   LL|      1|fn other_fn() {}