rails/rails — pull request #7076 by kennyj (2012-07-17 16:35:25+00:00)
Title: Fix class_eval without __FILE__ and __LINE__.

I checked rails source tree with the following command.

```
$ find . -name "*.rb" -print | xargs grep class_eval | grep -v __FILE__ | grep "<<"
```

I found class_eval without file/line, so I added them.