replaceVisitedExpressionWith(expr);
    }

    @Override
    public void visitAssertStatement(AssertStatement stat) {
        replaceExpr(stat.getBooleanExpression());
        replaceExpr(stat.getMessageExpression());
    }

    @Override
    public void visitExpressionStatement(ExpressionStatement stat) {
        stat.setExpression(replaceExpr(stat.getExpression()));
    }

    @Override