b4e8596e3e
Detect bare blocks with type ascription that were meant to be a `struct` literal Address part of #34255. Potential improvement: silence the other knock down errors in `issue-34255-1.rs`.
The rustc_ast crate contains those things concerned purely with syntax
– that is, the AST ("abstract syntax tree"), parser, pretty-printer,
lexer, macro expander, and utilities for traversing ASTs.
For more information about how these things work in rustc, see the rustc dev guide: