I think that debug support, like breakpoints, variable watch, variable inspection and shortcuts for step, step into, step over, play, stop is interest features that lacking on this editor.

Thanks. 

In a document like that:

bar foobarbaz bar foo bar

If I double-click "bar" I see words highlighted (outlined) based on whole-word find (very nice!)

[bar] foobarbaz [bar] foo [bar]

But then when I invoke "Quick Add Next" a few times I get different selection based on substring match:

bar foobarbaz bar foo bar

Notice that "bar" fragment in "foobarbaz" is unexpectedly selected, even though it hasn't been highlighted as a match before.

I wish those two features were aligned. Specifically I'd like to have "Quick Add Next Whole-Word Match" option, so it'd only select words I can already see highlighted.

Whole-word Quick Add Next is also very useful for renaming variables within a function, but currently it only works reliably when the name doesn't match substring (e.g. can't rename "i" variable, even though whole-word match would do well).

I wouldn't mind a bit of magic here too - use whole-word Quick Add if whole word is selected, and use substring if selection doesn't end on word boundaries.

I think the only thing missing Sublime Text 2 is the Arabic language support