Turbopack Nightly Release turbopack-230221.2

add possible unknown mutation to objects and arrays (#3882)

Before the static evaluation didn't consider the fact that objects and arrays can be mutated. So we can't just assume for sure that they have certain properties/items. Instead we add an unknown mutation alternative to handle that.

This avoids `if(obj.prop)` to be replaced with `if(true)` when prop is initialized with true. It might be modified in future.