mruby/mruby — pull request #749 by masamitsu-murase (2013-01-18 17:18:58+00:00)
Title: Modify handling of `bodystmt`.

In the current implementation, segmentation fault occurs
if `bodystmt` has `opt_else` without `opt_rescue`.

For example, the following code causes segmentation fault.
```ruby
begin
p 1
else
p 2
end
```

I think that `opt_else` without `opt_rescue` is useless, but segmentation fault should not be caused.