[iwyu] Include handles.h less.

src/builtins/builtins.h

 // Copyright 2011 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.
 
 #ifndef V8_BUILTINS_BUILTINS_H_
 #define V8_BUILTINS_BUILTINS_H_
 
 #include "src/base/flags.h"
-#include "src/handles.h"
+#include "src/globals.h"
 
 namespace v8 {
 namespace internal {
 
+template <typename T>
+class Handle;
+class Isolate;
+
 #define CODE_AGE_LIST_WITH_ARG(V, A) \
   V(Quadragenarian, A)               \
   V(Quinquagenarian, A)              \
   V(Sexagenarian, A)                 \
   V(Septuagenarian, A)               \
   V(Octogenarian, A)
 
 #define CODE_AGE_LIST_IGNORE_ARG(X, V) V(X)
 
 #define CODE_AGE_LIST(V) CODE_AGE_LIST_WITH_ARG(CODE_AGE_LIST_IGNORE_ARG, V)
@@ skipping 909 matching lines @@
 
   friend class Isolate;
 
   DISALLOW_COPY_AND_ASSIGN(Builtins);
 };
 
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_BUILTINS_BUILTINS_H_