Warn During Compilation if a Context Variable is Set and not Seen in an init()

[MTrop]

Decent enhancement: if a context variable is being set anywhere, but it was never initialized via init() on that context, the compiler should warn the user so.

These warnings, though, due to the nature of the compiler, will need to be output near the end of compilation.

[MTrop]

On second thought this may be way more difficult to do in static analysis. At runtime this is catchable, but it would not be ideal.

Shifting to low priority - this may not even be a huge issue.