[ic] Support data handlers that represent simple field stores.

src/code-stub-assembler.h

Index: src/code-stub-assembler.h
diff --git a/src/code-stub-assembler.h b/src/code-stub-assembler.h
index f997a997c9b288ed0891e3ecd5d2c235ea1a6999..c7d104d973c1fe2988359fc3642ffe4fe7c811a0 100644
--- a/src/code-stub-assembler.h
+++ b/src/code-stub-assembler.h
@@ -1075,6 +1075,21 @@ class V8_EXPORT_PRIVATE CodeStubAssembler : public compiler::CodeAssembler {
   void HandleLoadICHandlerCase(
       const LoadICParameters* p, compiler::Node* handler, Label* miss,
       ElementSupport support_elements = kOnlyProperties);
+
+  void HandleStoreFieldAndReturn(compiler::Node* handler_word,
+                                 compiler::Node* holder,
+                                 Representation representation,
+                                 compiler::Node* value,
+                                 bool transition_to_field, Label* miss);
+
+  void HandleStoreICSmiHandlerCase(compiler::Node* handler_word,
+                                   compiler::Node* holder,
+                                   compiler::Node* value,
+                                   bool transition_to_field, Label* miss);
+
+  void HandleStoreICHandlerCase(const StoreICParameters* p,
+                                compiler::Node* handler, Label* miss);
+
   compiler::Node* TryToIntptr(compiler::Node* key, Label* miss);
   void EmitFastElementsBoundsCheck(compiler::Node* object,
                                    compiler::Node* elements,