Auto merge of rust-lang#95555 - nnethercote:parse_tt-new-representati…

…on, r=petrochenkov A new matcher representation for use in `parse_tt` By transforming the matcher into a different form, `parse_tt` can run faster and be easier to understand. r? `@petrochenkov`
nnethercote · Apr 4, 2022 · 6a9080b · 6a9080b
2 parents d5139f4 + 0bd47e8
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diff --git a/compiler/rustc_expand/src/lib.rs b/compiler/rustc_expand/src/lib.rs
@@ -1,7 +1,5 @@
 #![feature(associated_type_bounds)]
 #![feature(associated_type_defaults)]
-#![feature(box_patterns)]
-#![feature(box_syntax)]
 #![feature(crate_visibility_modifier)]
 #![feature(decl_macro)]
 #![feature(if_let_guard)]