// BoundEventAssignmentOperator doesn't hold on to BoundEventAccess provided during binding.
// Based on the implementation of those two bound node types, the following data can be retrieved w/o changing BoundEventAssignmentOperator:
// 1. the type of BoundEventAccess is the type of the event symbol.
// 2. the constant value of BoundEventAccess is always null.
// 3. the syntax of the boundEventAssignmentOperator is always AssignmentExpressionSyntax, so the syntax for the event reference would be the LHS of the assignment.