@Override
      public void visitLambdaExpression(@NotNull PsiLambdaExpression expression) {
        super.visitLambdaExpression(expression);

        PsiElement body = expression.getBody();
        if (body instanceof PsiCodeBlock) {
          registerProblemsForExpressions((PsiCodeBlock)body, session);
        }
      }
@Override
      public void visitLambdaExpression(@NotNull PsiLambdaExpression expression)