* Adding cobyrc file for testing

* Adding isImplicit info to ioperation tests

* Adding Language name to the test dumper

* Formatting change to test dumper

* Removing cobyrc file

* Fixing more tests

* Resolving conflicts

* Moving the language to assert check

* Resolving conflicts

* Reacting to merge conflict

Fixes #22265

Remove IsDeclaration: False from ILocalReferenceExpression and IFieldReferenceExpression. Adding back is tracked by #21798

1. Add IsChecked flag for IIncrementExpression and ICompoundAssignmentExpression
2. Add back VB specific binary operator kinds
3. Add more unit tests and fix baselines of existing tests

Updated VB to handle BoundUserConversion correctly, get conversionkind directly from the BoundNodes.

* Tagging VB/C# Ioperation tests

* Fix the Wrong Tagging

* Changing the dumper to get of calling base.Visit when not needed

* Getting rid of cobyrc file

* Adding copyright header

* fixing merge conflict

* Change the IOperation unit test dump format for child nodes

* fixing the newly merged tests.

Since we will try to repalce the logic with existing rewriter, it makes more sense to
minimize the code change here. Also removed the corresponding tests, will fix and add
them back after the implementation is finalized. As result, the contract for
IHasArgumentsExpression.ArgumentsInEvaluationOrder in C# is broken.