{"ast_node_type":"function","tokens":[{"end":40,"kind":"keyword","start":0,"text":"fn"}]}
    fn __powidf2(a: f64, b: i32) -> f64;
    fn __powisf2(a: f32, b: i32) -> f32;
    // FIXME(f16_f128): `compiler-builtins` doesn't currently support `__powitf2` on MSVC.