@Override public void visitExpressionListStatement(@NotNull PsiExpressionListStatement statement) {
    startElement(statement);
    PsiExpression[] expressions = statement.getExpressionList().getExpressions();
    for (PsiExpression expr : expressions) {
      expr.accept(this);
      addInstruction(new PopInstruction());
    }
    finishElement(statement);
  }
@Override public void visitExpressionListStatement(@NotNull PsiExpressionListStatement statement)