Reland of "Remove ExternalArray, derived types, and element kinds"

src/ic/handler-compiler.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/v8.h"
 
 #include "src/cpu-profiler.h"
 #include "src/ic/call-optimization.h"
 #include "src/ic/handler-compiler.h"
 #include "src/ic/ic.h"
@@ skipping 559 matching lines @@
           (is_js_array && elements_kind == FAST_HOLEY_ELEMENTS &&
            *receiver_map ==
                isolate()->get_initial_js_array_map(elements_kind)) &&
           !is_strong(language_mode);
 
       if (receiver_map->has_indexed_interceptor()) {
         cached_stub = LoadIndexedInterceptorStub(isolate()).GetCode();
       } else if (IsSloppyArgumentsElements(elements_kind)) {
         cached_stub = KeyedLoadSloppyArgumentsStub(isolate()).GetCode();
       } else if (IsFastElementsKind(elements_kind) ||
-                 IsExternalArrayElementsKind(elements_kind) ||
                  IsFixedTypedArrayElementsKind(elements_kind)) {
         cached_stub = LoadFastElementStub(isolate(), is_js_array, elements_kind,
                                           convert_hole_to_undefined).GetCode();
       } else {
         DCHECK(elements_kind == DICTIONARY_ELEMENTS);
         LoadICState state =
             LoadICState(is_strong(language_mode) ? LoadICState::kStrongModeState
                                                  : kNoExtraICState);
         cached_stub = LoadDictionaryElementStub(isolate(), state).GetCode();
       }
     }
 
     handlers->Add(cached_stub);
   }
 }
 }  // namespace internal
 }  // namespace v8