[mathiasrw]

BREAK and CONTINUE (from #2263) throw an exception that the WHILE loop catches, but only in its synchronous path. Run with alasql.promise (or a callback), the exception escaped from a setTimeout and ended the Node process:

await alasql.promise(
	'DECLARE @i INT; SET @i = 0; WHILE @i < 10 BEGIN SET @i = @i + 1; IF @i = 3 BREAK; END; SELECT @i AS i'
);
// was: uncaught Exception [Error]: BREAK, process exits

The asynchronous loop now catches them the same way: BREAK ends the loop and CONTINUE starts the next round. The results match the synchronous run (test/test2263-B.js); test37 still passes.

Found while reviewing #2263.