Functions used before their declaration _sometimes_ aren't found

[sezna]

I just ran into this while doing testing for my other PR, thought I'd drop it here. Repro:

script;

const ADDRESS = 0x1234123412341234123412341234123412341234123412341234123412341234;

fn main() -> u64 {
  let caller: ContractCaller<SomeAbi> = abi(SomeAbi, get_addr());
  caller.baz();
  return 42;
}

abi SomeAbi {
  fn baz() -> u32;
  fn quux() -> u64;
}

fn get_addr() -> b256 {
  ADDRESS
}

Moving get_addr earlier fixes the error.