Refactor calls to CALL_HEAP_FUNCTION.

src/factory.h

Index: src/factory.h
diff --git a/src/factory.h b/src/factory.h
index 041c9869756ffe48d9373b8ed6a12bd82aceb27e..10fb11b4fec1e277cf361da8fb311ca02d3fcd91 100644
--- a/src/factory.h
+++ b/src/factory.h
@@ -186,8 +186,6 @@ class Factory V8_FINAL {
   MUST_USE_RESULT MaybeHandle<String> NewConsString(Handle<String> left,
                                                     Handle<String> right);
 
-  Handle<ConsString> NewRawConsString(String::Encoding encoding);
-
   // Create a new sequential string containing the concatenation of the inputs.
   Handle<String> NewFlatConcatString(Handle<String> first,
                                      Handle<String> second);
@@ -203,8 +201,6 @@ class Factory V8_FINAL {
     return NewProperSubString(str, begin, end);
   }
 
-  Handle<SlicedString> NewRawSlicedString(String::Encoding encoding);
-
   // Creates a new external String object.  There are two String encodings
   // in the system: ASCII and two byte.  Unlike other String types, it does
   // not make sense to have a UTF-8 factory function for external strings,
@@ -307,6 +303,14 @@ class Factory V8_FINAL {
 
   Handle<JSObject> NewFunctionPrototype(Handle<JSFunction> function);
 
+  Handle<JSObject> CopyJSObject(Handle<JSObject> object);
+
+  Handle<JSObject> CopyJSObjectWithMemento(Handle<JSObject> object,
+                                           Handle<AllocationSite> site);
+
+  Handle<FixedArray> CopyFixedArrayWithMap(Handle<FixedArray> array,
+                                           Handle<Map> map);
+
   Handle<FixedArray> CopyFixedArray(Handle<FixedArray> array);
 
   // This method expects a COW array in new space, and creates a copy