[intrinsics] Nuke %HasCachedArrayIndex and %GetCachedArrayIndex.

src/runtime/runtime-array.cc

 // Copyright 2014 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/runtime/runtime-utils.h"
 
 #include "src/arguments.h"
 #include "src/code-stubs.h"
 #include "src/conversions-inl.h"
 #include "src/elements.h"
@@ skipping 409 matching lines @@
   return isolate->heap()->ToBoolean(result.FromJust());
 }
 
 RUNTIME_FUNCTION(Runtime_IsArray) {
   SealHandleScope shs(isolate);
   DCHECK(args.length() == 1);
   CONVERT_ARG_CHECKED(Object, obj, 0);
   return isolate->heap()->ToBoolean(obj->IsJSArray());
 }
 
-RUNTIME_FUNCTION(Runtime_HasCachedArrayIndex) {
-  SealHandleScope shs(isolate);
-  DCHECK(args.length() == 1);
-  return isolate->heap()->false_value();
-}
-
-
-RUNTIME_FUNCTION(Runtime_GetCachedArrayIndex) {
-  // This can never be reached, because Runtime_HasCachedArrayIndex always
-  // returns false.
-  UNIMPLEMENTED();
-  return nullptr;
-}
-
-
 RUNTIME_FUNCTION(Runtime_ArraySpeciesConstructor) {
   HandleScope scope(isolate);
   DCHECK(args.length() == 1);
   CONVERT_ARG_HANDLE_CHECKED(Object, original_array, 0);
   RETURN_RESULT_OR_FAILURE(
       isolate, Object::ArraySpeciesConstructor(isolate, original_array));
 }
 
 // ES7 22.1.3.11 Array.prototype.includes
 RUNTIME_FUNCTION(Runtime_ArrayIncludes_Slow) {
@@ skipping 183 matching lines @@
       if (search_element->StrictEquals(*element_k)) {
         return *index_obj;
       }
     }
   }
   return Smi::FromInt(-1);
 }
 
 }  // namespace internal
 }  // namespace v8