Make KeyedStores from a sloppy arguments array use a handler.

src/code-stubs.h

 // 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.
 
 #ifndef V8_CODE_STUBS_H_
 #define V8_CODE_STUBS_H_
 
 #include "src/allocation.h"
 #include "src/assembler.h"
 #include "src/codegen.h"
@@ skipping 83 matching lines @@
   /* TurboFanCodeStubs */                   \
   V(StringLengthTF)                         \
   V(StringAddTF)                            \
   V(MathFloor)                              \
   /* IC Handler stubs */                    \
   V(ArrayBufferViewLoadField)               \
   V(LoadConstant)                           \
   V(LoadFastElement)                        \
   V(LoadField)                              \
   V(KeyedLoadSloppyArguments)               \
+  V(KeyedStoreSloppyArguments)              \
   V(StoreField)                             \
   V(StoreGlobal)                            \
   V(StoreTransition)                        \
   V(StringLength)                           \
   V(RestParamAccess)
 
 // List of code stubs only used on ARM 32 bits platforms.
 #if V8_TARGET_ARCH_ARM
 #define CODE_STUB_LIST_ARM(V) V(DirectCEntry)
 
@@ skipping 1016 matching lines @@
 
  protected:
   Code::Kind kind() const override { return Code::KEYED_LOAD_IC; }
   Code::StubType GetStubType() const override { return Code::FAST; }
 
  private:
   DEFINE_HANDLER_CODE_STUB(KeyedLoadSloppyArguments, HandlerStub);
 };
 
 
+class KeyedStoreSloppyArgumentsStub : public HandlerStub {
+ public:
+  explicit KeyedStoreSloppyArgumentsStub(Isolate* isolate)
+      : HandlerStub(isolate) {}
+
+ protected:
+  Code::Kind kind() const override { return Code::KEYED_STORE_IC; }
+  Code::StubType GetStubType() const override { return Code::FAST; }
+
+ private:
+  DEFINE_HANDLER_CODE_STUB(KeyedStoreSloppyArguments, HandlerStub);
+};
+
+
 class LoadConstantStub : public HandlerStub {
  public:
   LoadConstantStub(Isolate* isolate, int constant_index)
       : HandlerStub(isolate) {
     set_sub_minor_key(ConstantIndexBits::encode(constant_index));
   }
 
   int constant_index() const {
     return ConstantIndexBits::decode(sub_minor_key());
   }
@@ skipping 1801 matching lines @@
 
 #undef DEFINE_CALL_INTERFACE_DESCRIPTOR
 #undef DEFINE_PLATFORM_CODE_STUB
 #undef DEFINE_HANDLER_CODE_STUB
 #undef DEFINE_HYDROGEN_CODE_STUB
 #undef DEFINE_CODE_STUB
 #undef DEFINE_CODE_STUB_BASE
 } }  // namespace v8::internal
 
 #endif  // V8_CODE_STUBS_H_