A lot of tests was changed to refactor deprecated syntax. Six new tests were added to check deprecated syntax detection.
Diagnostic for "enum entry uses deprecated super constructor": constructor is highlighted
Diagnostic for "enum entry uses deprecated or no delimiter".
One warning removed.
Previously we prohibited classes and properties with the same name (now it's unnecessary)
Add test for backends that they support qualified (by default object name) member references inside class body
Mikhail Glukhikh