Auto merge of #95656 - cjgillot:no-id-hashing-mode, r=Aaron1011

Remove NodeIdHashingMode.

r? `@ghost`

compiler/rustc_hir/src/hir.rs

@@ -1299,7 +1299,7 @@ pub struct BodyId {
 ///
 /// All bodies have an **owner**, which can be accessed via the HIR
 /// map using `body_owner_def_id()`.
-#[derive(Debug)]
+#[derive(Debug, HashStable_Generic)]
 pub struct Body<'hir> {
     pub params: &'hir [Param<'hir>],
     pub value: Expr<'hir>,
@@ -2059,7 +2059,7 @@ pub struct FnSig<'hir> {
 // The bodies for items are stored "out of line", in a separate
 // hashmap in the `Crate`. Here we just record the hir-id of the item
 // so it can fetched later.
-#[derive(Copy, Clone, PartialEq, Eq, Encodable, Debug)]
+#[derive(Copy, Clone, PartialEq, Eq, Encodable, Debug, HashStable_Generic)]
 pub struct TraitItemId {
     pub def_id: LocalDefId,
 }
@@ -2076,7 +2076,7 @@ impl TraitItemId {
 /// possibly including a default implementation. A trait item is
 /// either required (meaning it doesn't have an implementation, just a
 /// signature) or provided (meaning it has a default implementation).
-#[derive(Debug)]
+#[derive(Debug, HashStable_Generic)]
 pub struct TraitItem<'hir> {
     pub ident: Ident,
     pub def_id: LocalDefId,
@@ -2122,7 +2122,7 @@ pub enum TraitItemKind<'hir> {
 // The bodies for items are stored "out of line", in a separate
 // hashmap in the `Crate`. Here we just record the hir-id of the item
 // so it can fetched later.
-#[derive(Copy, Clone, PartialEq, Eq, Encodable, Debug)]
+#[derive(Copy, Clone, PartialEq, Eq, Encodable, Debug, HashStable_Generic)]
 pub struct ImplItemId {
     pub def_id: LocalDefId,
 }
@@ -2136,7 +2136,7 @@ impl ImplItemId {
 }
 
 /// Represents anything within an `impl` block.
-#[derive(Debug)]
+#[derive(Debug, HashStable_Generic)]
 pub struct ImplItem<'hir> {
     pub ident: Ident,
     pub def_id: LocalDefId,
@@ -2637,7 +2637,7 @@ pub struct PolyTraitRef<'hir> {
 
 pub type Visibility<'hir> = Spanned<VisibilityKind<'hir>>;
 
-#[derive(Copy, Clone, Debug)]
+#[derive(Copy, Clone, Debug, HashStable_Generic)]
 pub enum VisibilityKind<'hir> {
     Public,
     Crate(CrateSugar),
@@ -2713,7 +2713,7 @@ impl<'hir> VariantData<'hir> {
 // The bodies for items are stored "out of line", in a separate
 // hashmap in the `Crate`. Here we just record the hir-id of the item
 // so it can fetched later.
-#[derive(Copy, Clone, PartialEq, Eq, Encodable, Debug, Hash)]
+#[derive(Copy, Clone, PartialEq, Eq, Encodable, Debug, Hash, HashStable_Generic)]
 pub struct ItemId {
     pub def_id: LocalDefId,
 }
@@ -2729,7 +2729,7 @@ impl ItemId {
 /// An item
 ///
 /// The name might be a dummy name in case of anonymous items
-#[derive(Debug)]
+#[derive(Debug, HashStable_Generic)]
 pub struct Item<'hir> {
     pub ident: Ident,
     pub def_id: LocalDefId,
@@ -2960,7 +2960,7 @@ pub enum AssocItemKind {
 // The bodies for items are stored "out of line", in a separate
 // hashmap in the `Crate`. Here we just record the hir-id of the item
 // so it can fetched later.
-#[derive(Copy, Clone, PartialEq, Eq, Encodable, Debug)]
+#[derive(Copy, Clone, PartialEq, Eq, Encodable, Debug, HashStable_Generic)]
 pub struct ForeignItemId {
     pub def_id: LocalDefId,
 }
@@ -2986,7 +2986,7 @@ pub struct ForeignItemRef {
     pub span: Span,
 }
 
-#[derive(Debug)]
+#[derive(Debug, HashStable_Generic)]
 pub struct ForeignItem<'hir> {
     pub ident: Ident,
     pub kind: ForeignItemKind<'hir>,
@@ -3028,7 +3028,7 @@ pub struct Upvar {
 // The TraitCandidate's import_ids is empty if the trait is defined in the same module, and
 // has length > 0 if the trait is found through an chain of imports, starting with the
 // import/use statement in the scope where the trait is used.
-#[derive(Encodable, Decodable, Clone, Debug)]
+#[derive(Encodable, Decodable, Clone, Debug, HashStable_Generic)]
 pub struct TraitCandidate {
     pub def_id: DefId,
     pub import_ids: SmallVec<[LocalDefId; 1]>,