Edit the "Compiler Source Code" chapter (#1307)
Edit the "Compiler Source Code" chapter (#1307)

Co-authored-by: Noah Lev <8177b8a8abced623d23d70ce3ff2dc3fbf53888c@gmail.com>
Co-authored-by: pierwill <a7ab10e8301cd563cb2146de24e8a000ef071fe2@users.noreply.github.com>
Co-authored-by: Yuki Okushi <0a792b09e3c7d426e6dc7b64bc4e95f557d97c14@2k36.org>
rust-lang/rustc-dev-guide,rust-lang/rustc-dev-guide,rust-lang/rustc-dev-guide,rust-lang/rustc-dev-guide