nac3standalone: add more tests

nac3core/src/codegen/mod.rs

@@ -225,7 +225,6 @@ impl WorkerRegistry {
 
         let mut errors = HashSet::new();
         while let Some(task) = self.receiver.recv().unwrap() {
-            let prev_module = module.write_bitcode_to_memory();
             match gen_func(&context, generator, self, builder, module, task) {
                 Ok(result) => {
                     builder = result.0;
@@ -235,7 +234,8 @@ impl WorkerRegistry {
                 Err((old_builder, e)) => {
                     builder = old_builder;
                     errors.insert(e);
-                    module = context.create_module_from_ir(prev_module).unwrap();
+                    // create a new empty module just to continue codegen and collect errors
+                    module = context.create_module(&format!("{}_recover", generator.get_name()));
                 }
             }
             *self.task_count.lock() -= 1;