Use declarations are now grouped into 4 groups:
- Declarations from the standard library
- Declarations from external crates
- Declarations from other crates in this project
- Declarations from within this module
Furthermore, all use declarations are grouped together to enhance
readability. super::super is also replaced by an equivalent crate::
declaration.
So that this does not have to be manually passed to the `cargo clippy`
command-line every single time. Also allows incrementally addressing
these lints by removing and fixing them one-by-one.
We now parse each CFI to read its encoding as opposed to assuming that
all CFIs within the same EH_Frame uses the same encoding. FDEs are now
iterated in a per-CFI manner.
