@Override
    public void visitAssignmentExpression(@NotNull GrAssignmentExpression assignment) {
      super.visitAssignmentExpression(assignment);

      if (assignment.isOperatorAssignment()) {
        return;
      }
      final GrExpression lhs = assignment.getLValue();
      final GrExpression rhs = assignment.getRValue();
      if (rhs == null) {
        return;
      }
      if (!(rhs instanceof GrReferenceExpression rhsReference) || !(lhs instanceof GrReferenceExpression lhsReference)) {
        return;
      }
      final GrExpression rhsQualifier = rhsReference.getQualifierExpression();
      final GrExpression lhsQualifier = lhsReference.getQualifierExpression();
      if (rhsQualifier != null || lhsQualifier != null) {
        if (!EquivalenceChecker.expressionsAreEquivalent(rhsQualifier, lhsQualifier)) {
          return;
        }
      }
      final String rhsName = rhsReference.getReferenceName();
      final String lhsName = lhsReference.getReferenceName();
      if (rhsName == null || lhsName == null) {
        return;
      }
      if (!rhsName.equals(lhsName)) {
        return;
      }
      final PsiElement rhsReferent = rhsReference.resolve();
      final PsiElement lhsReferent = lhsReference.resolve();
      if (rhsReferent == null || lhsReferent == null || !rhsReferent.equals(lhsReferent)) {
        return;
      }
      registerError(assignment);
    }
@Override
    public void visitAssignmentExpression(@NotNull GrAssignmentExpression assignment)