2 * Try to double-check that static fns have the right size (with or
3 * without dummy env ptr, as appropriate) by iterating a size-2 array.
4 * If the static size differs from the runtime size, the second element
5 * should be read as a null or otherwise wrong pointer and crash.
9 static mut CLOSURES: &'static mut [fn()] = &mut [f as fn(), f as fn()];
13 for closure in &mut *CLOSURES {