Clarified assertion for EA-50657.
Project settings: navigation to EA problems.
Added test for EA-53340.
Clarified assertion for EA-50536.
Clarified assertion which should be fixed on IDEA side.
Clarified assertion. Just in case.
Fixed EA-54056.
Fixed EA-50672.
Removed live templates completion contributor.

LT are added to completion on IDEA side.

Fixed EA-52890.
Made "Remove val/var from parameter" quick fix local.
Minor. Renamed class.
Fixed EA-61504.
Fixed EA-57220.
Minor. Storing valOrVar in constructor to avoid bad action text for outdated quick fix.