Remove visit_const_block in typeck writeback

There is a `visit_inline_const` visitor method and it is used instead.

Author: nbdd0121

compiler/rustc_hir_typeck/src/writeback.rs

@@ -248,13 +248,6 @@ impl<'cx, 'tcx> WritebackCx<'cx, 'tcx> {
  }
  }
  }
-
- fn visit_const_block(&mut self, span: Span, anon_const: &hir::ConstBlock) {
- self.visit_node_id(span, anon_const.hir_id);
-
- let body = self.tcx().hir_body(anon_const.body);
- self.visit_body(body);
- }
 }
 
 ///////////////////////////////////////////////////////////////////////////
@@ -284,9 +277,6 @@ impl<'cx, 'tcx> Visitor<'tcx> for WritebackCx<'cx, 'tcx> {
  hir::ExprKind::Field(..) | hir::ExprKind::OffsetOf(..) => {
  self.visit_field_id(e.hir_id);
  }
- hir::ExprKind::ConstBlock(ref anon_const) => {
- self.visit_const_block(e.span, anon_const);
- }
  _ => {}
  }
 
@@ -297,6 +287,14 @@ impl<'cx, 'tcx> Visitor<'tcx> for WritebackCx<'cx, 'tcx> {
  self.fix_index_builtin_expr(e);
  }
 
+ fn visit_inline_const(&mut self, anon_const: &hir::ConstBlock) {
+ let span = self.tcx().def_span(anon_const.def_id);
+ self.visit_node_id(span, anon_const.hir_id);
+
+ let body = self.tcx().hir_body(anon_const.body);
+ self.visit_body(body);
+ }
+
  fn visit_generic_param(&mut self, p: &'tcx hir::GenericParam<'tcx>) {
  match &p.kind {
  hir::GenericParamKind::Lifetime { .. } => {
@@ -343,9 +341,6 @@ impl<'cx, 'tcx> Visitor<'tcx> for WritebackCx<'cx, 'tcx> {
 
  fn visit_pat_expr(&mut self, expr: &'tcx hir::PatExpr<'tcx>) {
  self.visit_node_id(expr.span, expr.hir_id);
- if let hir::PatExprKind::ConstBlock(c) = &expr.kind {
- self.visit_const_block(expr.span, c);
- }
  intravisit::walk_pat_expr(self, expr);
  }