mruby/mruby — pull request #1886 by tsahara (2014-03-18 11:39:30+00:00)
Title: Kernel.loop should not catch StandardError.

Current implementation of Kernel.loop prevents us to catch a StandardError exception raised in the loop block because Kernel.loop itself catches it then throws it away.

```
begin
loop do
hoge
end
rescue => e
p e
end
```

```sh
% ruby a.rb
#

% bin/mruby a.rb
%
```