```
test.rb:1:in 'Object#toplevel_meth': unhandled exception
        from test.rb:4:in 'Foo.class_meth'
        from test.rb:6:in 'Foo#instance_meth'
        from test.rb:11:in 'singleton_meth'
        from test.rb:13:in '<main>'
```

[Feature #19117]