[presubmit] Enabling readability/inheritance linter checking.

src/ast-numbering.cc

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "src/ast-numbering.h"
 
 #include "src/ast.h"
 #include "src/scopes.h"
 
 namespace v8 {
 namespace internal {
 
 class AstNumberingVisitor final : public AstVisitor {
  public:
   AstNumberingVisitor(Isolate* isolate, Zone* zone)
       : AstVisitor(),
         isolate_(isolate),
         zone_(zone),
         next_id_(BailoutId::FirstUsable().ToInt()),
         properties_(zone),
         slot_cache_(zone),
         dont_optimize_reason_(kNoReason) {
     InitializeAstVisitor(isolate);
   }
 
   bool Renumber(FunctionLiteral* node);
 
  private:
 // AST node visitor interface.
-#define DEFINE_VISIT(type) virtual void Visit##type(type* node) override;
+#define DEFINE_VISIT(type) void Visit##type(type* node) override;
   AST_NODE_LIST(DEFINE_VISIT)
 #undef DEFINE_VISIT
 
   bool Finish(FunctionLiteral* node);
 
   void VisitVariableProxyReference(VariableProxy* node);
   void VisitPropertyReference(Property* node);
   void VisitReference(Expression* expr);
 
   void VisitStatements(ZoneList<Statement*>* statements) override;
@@ skipping 542 matching lines @@
 }
 
 
 bool AstNumbering::Renumber(Isolate* isolate, Zone* zone,
                             FunctionLiteral* function) {
   AstNumberingVisitor visitor(isolate, zone);
   return visitor.Renumber(function);
 }
 }  // namespace internal
 }  // namespace v8