We need to offer up content assist for the keys of the JSON-like objects in TSS files. This ticket specifically addresses offerring up the list of classes and IDs found in the view files.
The "#myLabel" token is what we'd suggest. IDs use a # prefix like in CSS, and classes use ..
The list of classes and ids is found by querying the indexed values from
app.tss should query all files. For other tss files we can limit the scope to just the associated view (same hierarchy and basename).