Problem/Motivation
Fix references to the deprecated Entity class. It was renamed to EntityBase.
During the search for references I've found some more inconsistencies, which I hope could be fixed together.
Steps to reproduce
Proposed resolution
Use this to search for instances grep -r "[/*].*[ \]Entity::" core | grep -v processStubRow | grep -v validateArgument | grep -v config_test
Remaining tasks
Review