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

src/ic/ic-compiler.cc

Index: src/ic/ic-compiler.cc
diff --git a/src/ic/ic-compiler.cc b/src/ic/ic-compiler.cc
index a5ae6cfff4495e7bcd3d7e5b7050a6acdaa6c215..4fe30234ee7bbe12759ad1e35f3cbd23f0a0c76c 100644
--- a/src/ic/ic-compiler.cc
+++ b/src/ic/ic-compiler.cc
@@ -109,7 +109,6 @@ Handle<Code> PropertyICCompiler::ComputeKeyedLoadMonomorphicHandler(
   } else if (receiver_map->has_sloppy_arguments_elements()) {
     stub = KeyedLoadSloppyArgumentsStub(isolate).GetCode();
   } else if (receiver_map->has_fast_elements() ||
-             receiver_map->has_external_array_elements() ||
              receiver_map->has_fixed_typed_array_elements()) {
     stub = LoadFastElementStub(isolate, is_js_array, elements_kind,
                                convert_hole_to_undefined).GetCode();
@@ -369,7 +368,6 @@ Handle<Code> PropertyICCompiler::CompileKeyedStorePolymorphic(
       if (IsSloppyArgumentsElements(elements_kind)) {
         cached_stub = KeyedStoreSloppyArgumentsStub(isolate()).GetCode();
       } else if (receiver_map->has_fast_elements() ||
-                 receiver_map->has_external_array_elements() ||
                  receiver_map->has_fixed_typed_array_elements()) {
         cached_stub = StoreFastElementStub(isolate(), is_js_array,
                                            elements_kind, store_mode).GetCode();
@@ -401,7 +399,6 @@ Handle<Code> PropertyICCompiler::CompileKeyedStoreMonomorphic(
   if (receiver_map->has_sloppy_arguments_elements()) {
     stub = KeyedStoreSloppyArgumentsStub(isolate()).GetCode();
   } else if (receiver_map->has_fast_elements() ||
-             receiver_map->has_external_array_elements() ||
              receiver_map->has_fixed_typed_array_elements()) {
     stub = StoreFastElementStub(isolate(), is_jsarray, elements_kind,
                                 store_mode).GetCode();