Check Windows case insensitive app name

On Windows if we run `node-debug app` and real file name is App.js,
we have two identical files in resources tree (app.js and App.js),
but we can't set breakpoints in App.js.
Err, this will not work on windows, will it? IMO you should find all usages of `inspectorUrlToV8Name` and make sure they are called with the `normalize` argument set.