move event code up a level (#4381)

move event code up a level plus minor fixes

core/dbt/events/functions.py

@@ -132,16 +132,17 @@ def event_to_serializable_dict(
     data = dict()
     node_info = dict()
     if hasattr(e, '__dataclass_fields__'):
-        for field, value in dataclasses.asdict(e).items():  # type: ignore[attr-defined]
-            _json_value = e.fields_to_json(value)
+        if isinstance(e, NodeInfo):
+            node_info = dataclasses.asdict(e.get_node_info())
 
-            if isinstance(e, NodeInfo):
-                node_info = dataclasses.asdict(e.get_node_info())
+        for field, value in dataclasses.asdict(e).items():  # type: ignore[attr-defined]
+            if field not in ["code", "report_node_data"]:
+                _json_value = e.fields_to_json(value)
 
-            if not isinstance(_json_value, Exception):
-                data[field] = _json_value
-            else:
-                data[field] = f"JSON_SERIALIZE_FAILED: {type(value).__name__, 'NA'}"
+                if not isinstance(_json_value, Exception):
+                    data[field] = _json_value
+                else:
+                    data[field] = f"JSON_SERIALIZE_FAILED: {type(value).__name__, 'NA'}"
 
     event_dict = {
         'type': 'log_line',
@@ -153,7 +154,8 @@ def event_to_serializable_dict(
         'data': data,
         'invocation_id': e.get_invocation_id(),
         'thread_name': e.get_thread_name(),
-        'node_info': node_info
+        'node_info': node_info,
+        'code': e.code
     }
 
     return event_dict