Remove crate visibility usage in compiler

compiler/rustc_ast/src/attr/mod.rs

@@ -340,7 +340,7 @@ pub fn mk_nested_word_item(ident: Ident) -> NestedMetaItem {
     NestedMetaItem::MetaItem(mk_word_item(ident))
 }
 
-crate fn mk_attr_id() -> AttrId {
+pub(crate) fn mk_attr_id() -> AttrId {
     use std::sync::atomic::AtomicU32;
     use std::sync::atomic::Ordering;
 

compiler/rustc_ast/src/lib.rs

@@ -12,7 +12,6 @@
 #![feature(box_patterns)]
 #![feature(const_default_impls)]
 #![feature(const_trait_impl)]
-#![feature(crate_visibility_modifier)]
 #![feature(if_let_guard)]
 #![feature(label_break_value)]
 #![feature(let_chains)]

compiler/rustc_ast/src/token.rs

@@ -134,7 +134,7 @@ impl LitKind {
         }
     }
 
-    crate fn may_have_suffix(self) -> bool {
+    pub(crate) fn may_have_suffix(self) -> bool {
         matches!(self, Integer | Float | Err)
     }
 }