`self` in `self::SomeType` points to type and root not file module

[Xanewok]

This happened when trying to reproduce #467.

enum MyEnum {
    VariantA,
}

fn main() {
    let _ = self::MyEnum::VariantA;
}

The self points to MyEnum::VariantA, which means that a VariantA -> VariantB changes it to

enum MyEnum {
    VariantB,
}

fn main() {
    let _ = VariantB::MyEnum::VariantB;
}