[ic] Support Api getters by data handlers.

src/ic/handler-configuration.h

Index: src/ic/handler-configuration.h
diff --git a/src/ic/handler-configuration.h b/src/ic/handler-configuration.h
index 7ffe192c1af673486da517324f7f888eb19d3a03..b4887e33bac3243968a2c58a9ae92a167d6e2144 100644
--- a/src/ic/handler-configuration.h
+++ b/src/ic/handler-configuration.h
@@ -35,9 +35,11 @@ class LoadHandler {
   // Encoding when KindBits contains kForConstants.
   //
 
+  class IsAccessorInfoBits
+      : public BitField<bool, DoNegativeLookupOnReceiverBits::kNext, 1> {};
   // +2 here is because each descriptor entry occupies 3 slots in array.
   class DescriptorValueIndexBits
-      : public BitField<unsigned, DoNegativeLookupOnReceiverBits::kNext,
+      : public BitField<unsigned, IsAccessorInfoBits::kNext,
                         kDescriptorIndexBitCount + 2> {};
   // Make sure we don't overflow the smi.
   STATIC_ASSERT(DescriptorValueIndexBits::kNext <= kSmiValueSize);
@@ -87,6 +89,9 @@ class LoadHandler {
   // Creates a Smi-handler for loading a constant from fast object.
   static inline Handle<Object> LoadConstant(Isolate* isolate, int descriptor);
 
+  // Creates a Smi-handler for loading an Api getter property from fast object.
+  static inline Handle<Object> LoadApiGetter(Isolate* isolate, int descriptor);
+
   // Sets DoAccessCheckOnReceiverBits in given Smi-handler. The receiver
   // check is a part of a prototype chain check.
   static inline Handle<Object> EnableAccessCheckOnReceiver(