Variable is set in try block, but would be appended to the list after the except block

The default DataType of a struct field should be i=24 -> BaseDataType.
Found this error in Opc.Ua.Plastics.Rubber.GeneralTypes

bump codeql action to v2 https://github.blog/changelog/2022-04-27-code-scanning-deprecation-of-codeql-action-v1/

Match some default value to keep the same code when switching from sync to async

This complies with the original behavior before refactoring.

Optimize processing with some standard data structures.
Stop adding reverse references to HasTypeDefinitions.

instead of Node.to_string 
_node_to_string correctly maps namespaces idxs