For method parameters, show list of options

Number 1 through 8 would be suggestions based on available variables / values based on type (similar to what Eclipse does)

For objects option 9 would be to create a new instance (using no-arg constructor). This would only show if valid.

Option 10 would be null or false for boolean

Add keyboard shortcut to allow pressing hotkey to activate choice. Option 10 would be 0.

Dictation could then press the hotkey to make the choice (similar to Dragon's drop-down for corrections)