6269bf1a3a
More expressions correctly are marked to end with curly braces Fixes #118859, and replaces the mentioned match statement with an exhaustive list, so that this code doesn't get overlooked in the future
The rustc_ast crate contains those things concerned purely with syntax
– that is, the AST ("abstract syntax tree"), along with some definitions for tokens and token streams, data structures/traits for mutating ASTs, and shared definitions for other AST-related parts of the compiler (like the lexer and macro-expansion).
For more information about how these things work in rustc, see the rustc dev guide: