Remove hir::Node::hir_id.

Author: cjgillot

compiler/rustc_hir/src/hir.rs

@@ -3209,34 +3209,6 @@ impl<'hir> Node<'hir> {
         }
     }
 
-    pub fn hir_id(&self) -> Option<HirId> {
-        match self {
-            Node::Item(Item { def_id, .. })
-            | Node::TraitItem(TraitItem { def_id, .. })
-            | Node::ImplItem(ImplItem { def_id, .. })
-            | Node::ForeignItem(ForeignItem { def_id, .. }) => Some(HirId::make_owner(*def_id)),
-            Node::Field(FieldDef { hir_id, .. })
-            | Node::AnonConst(AnonConst { hir_id, .. })
-            | Node::Expr(Expr { hir_id, .. })
-            | Node::Stmt(Stmt { hir_id, .. })
-            | Node::Ty(Ty { hir_id, .. })
-            | Node::Binding(Pat { hir_id, .. })
-            | Node::Pat(Pat { hir_id, .. })
-            | Node::Arm(Arm { hir_id, .. })
-            | Node::Block(Block { hir_id, .. })
-            | Node::Local(Local { hir_id, .. })
-            | Node::Lifetime(Lifetime { hir_id, .. })
-            | Node::Param(Param { hir_id, .. })
-            | Node::Infer(InferArg { hir_id, .. })
-            | Node::GenericParam(GenericParam { hir_id, .. }) => Some(*hir_id),
-            Node::TraitRef(TraitRef { hir_ref_id, .. }) => Some(*hir_ref_id),
-            Node::PathSegment(PathSegment { hir_id, .. }) => *hir_id,
-            Node::Variant(Variant { id, .. }) => Some(*id),
-            Node::Ctor(variant) => variant.ctor_hir_id(),
-            Node::Crate(_) | Node::Visibility(_) => None,
-        }
-    }
-
     /// Returns `Constness::Const` when this node is a const fn/impl/item.
     pub fn constness_for_typeck(&self) -> Constness {
         match self {