Handle this by auto-binding the generator's next function.
If translating a generator that has a complex node such as If or While, only translate that into a generator portion if there are generator-specific jumps that occur.
Add support for switch in generators.
Remove := as a special assignment, handle it like every other assignment in the prelude.
when running build:browser with uglify on, uglify the serialized prelude.
Assignment now checks for variable existence and mutability, not allowing one to reassign immutable variables.
Update the index to mention the { f() -> } syntax.