Auto merge of #7899 - mikerite:fullint-20211030, r=xFrednet
Auto merge of #7899 - mikerite:fullint-20211030, r=xFrednet

Refactoring `FullInt`

Refactoring `FullInt`

changelog: None

aidancully/rust,aidancully/rust,aidancully/rust,graydon/rust,graydon/rust,aidancully/rust,graydon/rust,aidancully/rust,graydon/rust,graydon/rust,aidancully/rust,graydon/rust