Handle case when class region equals top namespace region
Cleanup for method to getIndentLevel of text
Remove unused method in CompilerManager
Fix bug with finding containing Box for region
Correct a typo
Add test for _getContainingBox
Visit test methods

This way, we can get autocompletion for their local variables.  Some issues
still remain including:

 * Completion proposals include local variables for method bodies and parameters

 * Only public members are proposed for instances of containing class