Fix wasm_build
`use crate::function::Function` must be active with or without
debug_assertions because it is used in traits enabled when
debug_assertions is not enabled.
@@ -17,7 +17,6 @@ use crate::binary::{self, heap, sub, Part, PartToList};
use crate::code::Code;
use crate::exception::{self, Class, Exception};
use crate::float::{self, Float};
-#[cfg(debug_assertions)]
use crate::function::Function;
use crate::heap::{CloneIntoHeap, Heap};
use crate::integer::Integer::{self, Big, Small};
