7a7b65abbe
Docs for `thir::ExprKind::Use` and `thir::ExprKind::Let` These docs are based on my own recent investigations; hopefully they're reasonably accurate. `Use` was particularly puzzling to me at first, since the name is not very suggestive, and the old docs were quite cryptic.
For more information about how rustc works, see the rustc dev guide.