Scope parent referencing

[vihanb]

Currently relationship-based scope generation, due to primarily top-linked bindings, something like this works:

let a = 1
if true {
    print a // prints 2
    let a = 2
}

which is obviously not good. Something should be used such as:

while node.queueQualifier < node.reference.queueQualifier {
    negotiateValue(node, node.reference.parentScope.parentScope.scope)
}