Improve code examples for E0383 long diagnostic.
Improve code examples for E0383 long diagnostic.

dwillmer/rust,GBGamer/rust,GBGamer/rust,GBGamer/rust,aidancully/rust,dwillmer/rust,GBGamer/rust,aidancully/rust,GBGamer/rust,dwillmer/rust,GBGamer/rust,aidancully/rust,GBGamer/rust,dwillmer/rust,graydon/rust,aidancully/rust,GBGamer/rust,aidancully/rust,dwillmer/rust,dwillmer/rust,aidancully/rust,dwillmer/rust,graydon/rust,graydon/rust,graydon/rust,dwillmer/rust,graydon/rust,graydon/rust