Potential memory leak in ep_file_write_event error path

[filipnavara]

metadata_instance gets allocated here:

runtime/src/native/eventpipe/ep-file.c

Line 464 in 24e7d1b

metadata_instance = ep_build_event_metadata_event (event_instance, metadata_id);

This error path will presumably go to ep_on_error which skips the ep_event_metadata_event_free (metadata_instance); call:

runtime/src/native/eventpipe/ep-file.c

Line 468 in 24e7d1b

ep_raise_error_if_nok (file_save_metadata_id (file, ep_event_instance_get_ep_event (event_instance), metadata_id));

[dotnet-policy-service]

Tagging subscribers to this area: @tommcdon
See info in area-owners.md if you want to be subscribed.