{"ast_node_type":"other","tokens":[{"end":85,"kind":"keyword","start":0,"text":"`#[rustc_intrinsic_must_be_overridden]`"}]}
`#[rustc_intrinsic_must_be_overridden]` to the function to ensure that backends don't
Use `loop {}` for the body or call the intrinsic recursively and add
invoke the body.