@Override
      public void visitMethodCallExpression(@NotNull PsiMethodCallExpression expression) {
        if (expression.getTextRange().getStartOffset() < statement.getTextRange().getStartOffset()) {
          final PsiReferenceExpression methodExpression = expression.getMethodExpression();
          if (methodExpression.textMatches(PsiKeyword.THIS)) {
            fields.clear();
          }
        }
        super.visitMethodCallExpression(expression);
      }
@Override
      public void visitMethodCallExpression(@NotNull PsiMethodCallExpression expression)