fix save_test_history macro to work when a model depends_on a source with the same name

[akshaykarle]

• Separate the sources and refs in the nodes list and use that to find the node_name
• Fixes issue: [BUG] Save test history fails when a model and a source have the same name with a dependency between them re-data#371
• Thanks to @cmardiros for improving the original PR and fixing it to work with snapshots in addition to models and sources

What

Describe what the change is solving
By using the separated source and ref lists, we can ensure that we fetch the correct node name for the test.

How

passing the additional depends_on_nodes parameter to priv_full_name_from_depends fixes the failing error as it now fetches the correct node for the corresponding source or model