Auto merge of #64813 - varkor:node-to-kind, r=Centril

Rename `*.node` to `*.kind`, and `hair::Pattern*` to `hair::Pat*`

In both `ast::Expr` and `hir::Expr`:

- Rename `Expr.node` to `Expr.kind`.
- Rename `Pat.node` to `Pat.kind`.
- Rename `ImplItem.node` to `ImplItem.kind`.
- Rename `Lit.node` to `Lit.kind`.
- Rename `TraitItem.node` to `TraitItem.kind`.
- Rename `Ty.node` to `Ty.kind`.
- Rename `Stmt.node` to `Stmt.kind`.
- Rename `Item.node` to `Item.kind`.
- Rename `ForeignItem.node` to `ForeignItem.kind`.
- Rename `MetaItem.node` to `MetaItem.kind`.

Also:
- Rename `hair::FieldPattern` to `hair::FieldPat`.
- Rename `hair::PatternKind` to `hair::PatKind`.
- Rename `hair::PatternRange` to `hair::PatRange`.
- Rename `PatternContext` to `PatCtxt`.
- Rename `PatternTypeProjection` to `PatTyProj`.
- Rename `hair::Pattern` to `hair::Pat`.

These two sets of changes are grouped together to aid with merging. The only changes are renamings.

r? @petrochenkov

src/librustc/hir/check_attr.rs

@@ -65,7 +65,7 @@ impl Display for Target {
 
 impl Target {
     pub(crate) fn from_item(item: &hir::Item) -> Target {
-        match item.node {
+        match item.kind {
             hir::ItemKind::ExternCrate(..) => Target::ExternCrate,
             hir::ItemKind::Use(..) => Target::Use,
             hir::ItemKind::Static(..) => Target::Static,
@@ -262,7 +262,7 @@ impl CheckAttrVisitor<'tcx> {
 
     fn check_stmt_attributes(&self, stmt: &hir::Stmt) {
         // When checking statements ignore expressions, they will be checked later
-        if let hir::StmtKind::Local(ref l) = stmt.node {
+        if let hir::StmtKind::Local(ref l) = stmt.kind {
             for attr in l.attrs.iter() {
                 if attr.check_name(sym::inline) {
                     self.check_inline(attr, &stmt.span, Target::Statement);
@@ -280,7 +280,7 @@ impl CheckAttrVisitor<'tcx> {
     }
 
     fn check_expr_attributes(&self, expr: &hir::Expr) {
-        let target = match expr.node {
+        let target = match expr.kind {
             hir::ExprKind::Closure(..) => Target::Closure,
             _ => Target::Expression,
         };
@@ -333,7 +333,7 @@ impl Visitor<'tcx> for CheckAttrVisitor<'tcx> {
 }
 
 fn is_c_like_enum(item: &hir::Item) -> bool {
-    if let hir::ItemKind::Enum(ref def, _) = item.node {
+    if let hir::ItemKind::Enum(ref def, _) = item.kind {
         for variant in &def.variants {
             match variant.data {
                 hir::VariantData::Unit(..) => { /* continue */ }

src/librustc/hir/intravisit.rs

@@ -465,7 +465,7 @@ pub fn walk_param<'v, V: Visitor<'v>>(visitor: &mut V, param: &'v Param) {
 pub fn walk_item<'v, V: Visitor<'v>>(visitor: &mut V, item: &'v Item) {
     visitor.visit_vis(&item.vis);
     visitor.visit_ident(item.ident);
-    match item.node {
+    match item.kind {
         ItemKind::ExternCrate(orig_name) => {
             visitor.visit_id(item.hir_id);
             if let Some(orig_name) = orig_name {
@@ -594,7 +594,7 @@ pub fn walk_variant<'v, V: Visitor<'v>>(visitor: &mut V,
 pub fn walk_ty<'v, V: Visitor<'v>>(visitor: &mut V, typ: &'v Ty) {
     visitor.visit_id(typ.hir_id);
 
-    match typ.node {
+    match typ.kind {
         TyKind::Slice(ref ty) => {
             visitor.visit_ty(ty)
         }
@@ -696,7 +696,7 @@ pub fn walk_assoc_type_binding<'v, V: Visitor<'v>>(visitor: &mut V,
 
 pub fn walk_pat<'v, V: Visitor<'v>>(visitor: &mut V, pattern: &'v Pat) {
     visitor.visit_id(pattern.hir_id);
-    match pattern.node {
+    match pattern.kind {
         PatKind::TupleStruct(ref qpath, ref children, _) => {
             visitor.visit_qpath(qpath, pattern.hir_id, pattern.span);
             walk_list!(visitor, visit_pat, children);
@@ -743,7 +743,7 @@ pub fn walk_foreign_item<'v, V: Visitor<'v>>(visitor: &mut V, foreign_item: &'v
     visitor.visit_vis(&foreign_item.vis);
     visitor.visit_ident(foreign_item.ident);
 
-    match foreign_item.node {
+    match foreign_item.kind {
         ForeignItemKind::Fn(ref function_declaration, ref param_names, ref generics) => {
             visitor.visit_generics(generics);
             visitor.visit_fn_decl(function_declaration);
@@ -856,7 +856,7 @@ pub fn walk_trait_item<'v, V: Visitor<'v>>(visitor: &mut V, trait_item: &'v Trai
     visitor.visit_ident(trait_item.ident);
     walk_list!(visitor, visit_attribute, &trait_item.attrs);
     visitor.visit_generics(&trait_item.generics);
-    match trait_item.node {
+    match trait_item.kind {
         TraitItemKind::Const(ref ty, default) => {
             visitor.visit_id(trait_item.hir_id);
             visitor.visit_ty(ty);
@@ -905,7 +905,7 @@ pub fn walk_impl_item<'v, V: Visitor<'v>>(visitor: &mut V, impl_item: &'v ImplIt
         ref defaultness,
         ref attrs,
         ref generics,
-        ref node,
+        ref kind,
         span: _,
     } = *impl_item;
 
@@ -914,7 +914,7 @@ pub fn walk_impl_item<'v, V: Visitor<'v>>(visitor: &mut V, impl_item: &'v ImplIt
     visitor.visit_defaultness(defaultness);
     walk_list!(visitor, visit_attribute, attrs);
     visitor.visit_generics(generics);
-    match *node {
+    match *kind {
         ImplItemKind::Const(ref ty, body) => {
             visitor.visit_id(impl_item.hir_id);
             visitor.visit_ty(ty);
@@ -974,7 +974,7 @@ pub fn walk_block<'v, V: Visitor<'v>>(visitor: &mut V, block: &'v Block) {
 
 pub fn walk_stmt<'v, V: Visitor<'v>>(visitor: &mut V, statement: &'v Stmt) {
     visitor.visit_id(statement.hir_id);
-    match statement.node {
+    match statement.kind {
         StmtKind::Local(ref local) => visitor.visit_local(local),
         StmtKind::Item(item) => visitor.visit_nested_item(item),
         StmtKind::Expr(ref expression) |
@@ -992,7 +992,7 @@ pub fn walk_anon_const<'v, V: Visitor<'v>>(visitor: &mut V, constant: &'v AnonCo
 pub fn walk_expr<'v, V: Visitor<'v>>(visitor: &mut V, expression: &'v Expr) {
     visitor.visit_id(expression.hir_id);
     walk_list!(visitor, visit_attribute, expression.attrs.iter());
-    match expression.node {
+    match expression.kind {
         ExprKind::Box(ref subexpression) => {
             visitor.visit_expr(subexpression)
         }