message: Fix function calls to themselves.
  Previously fac-rec-named was emitting a call to fac-rec-named.1 due to LLVM auto-renaming the function.
diff: @@ -2176,9 +2176,15 @@ impl<'ctx, 'a> LLVMFunctionCodeGenerator<'ctx, 'a> {
  let func_name = module.func_names.get(&func_index).unwrap();
  let llvm_func_type = func_type_to_llvm(&self.context, &intrinsics, func_type);
  - let func =
  + let func = self.module.get_function(func_name);
  + // TODO: we could do this by comparing function indices instead
  + // of going through LLVM APIs and string comparisons.
  + let func = if func.is_none() {
  self.module
  - .add_function(func_name, llvm_func_type, Some(Linkage::External));
  + .add_function(func_name, llvm_func_type, Some(Linkage::External))
  + } else {
  + func.unwrap()
  + };
  let params: Vec<_> = std::iter::once(ctx.basic())
  .chain(
  