Nicholas Nethercote 89c21f7c1a Remove out-of-date noop_* names.
`mut_visit.rs` has a single function with a `noop_` prefix:
`noop_filter_map_expr`. This commit renames as `walk_filter_map_expr`
which is consistent with other functions in this file.

The commit also removes out-of-date comments that refer to `noop_*`
methods.
2025-05-27 19:16:11 +10:00
..
2025-05-27 19:16:11 +10:00

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: