Breakpoints in VM scripts

I've noticed VM scripts do not have their breakpoints triggered. Do you have any insight on this?

Probably due to the debugger protocol not being supported in VM, right?

For example, try pasting this in the console:

``` js
vm = require('vm')
vm.runInContext(
'console.log("before debugger");\n' +
'debugger;\n' +
'console.log("after debugger");\n' +
'//# sourceURL=wat.js',
vm.createContext({
console: console
})
)
```