Fix stuff

Author: camelid

compiler/rustc_feature/src/unstable.rs

@@ -606,8 +606,7 @@ declare_features! (
     /// Allows using fields with slice type in offset_of!
     (unstable, offset_of_slice, "1.81.0", Some(126151)),
     /// Allows using generics in more complex const expressions, based on definitional equality.
-    // TODO: create tracking issue
-    (unstable, opaque_generic_const_args, "CURRENT_RUSTC_VERSION", None),
+    (unstable, opaque_generic_const_args, "CURRENT_RUSTC_VERSION", Some(151972)),
     /// Allows using `#[optimize(X)]`.
     (unstable, optimize_attribute, "1.34.0", Some(54882)),
     /// Allows specifying nop padding on functions for dynamic patching.

compiler/rustc_parse/src/parser/item.rs

@@ -1551,16 +1551,8 @@ impl<'a> Parser<'a> {
 
         let rhs = if self.eat(exp!(Eq)) {
             if attr::contains_name(attrs, sym::type_const) {
-                let ct = if self.eat_keyword(exp!(Const)) {
-                    // While we could just disambiguate `Direct` from `AnonConst` by
-                    // treating all const block exprs as `AnonConst`, that would
-                    // complicate the DefCollector and likely all other visitors.
-                    // So we strip the const blockiness and just store it as a block
-                    // in the AST with the extra disambiguator on the AnonConst
-                    self.parse_mgca_const_block(false)?
-                } else {
-                    self.parse_expr_anon_const(|this, expr| this.mgca_direct_lit_hack(expr))?
-                };
+                let ct =
+                    self.parse_expr_anon_const(|this, expr| this.mgca_direct_lit_hack(expr))?;
                 Some(ConstItemRhs::TypeConst(ct))
             } else {
                 Some(ConstItemRhs::Body(self.parse_expr()?))