mruby/mruby — pull request #1174 by h2so5 (2013-04-12 05:50:15+00:00)
Title: Add ArgumentError to instance_eval

## current
```bash
$ mirb
mirb - Embeddable Interactive Ruby Shell

This is a very early version, please test and report errors.
Thanks :)

> instance_eval
Segmentation fault: 11
```

## fixed
```bash
$ mirb
mirb - Embeddable Interactive Ruby Shell

This is a very early version, please test and report errors.
Thanks :)

> instance_eval
ArgumentError: no block given
>
```