[stubs] Unify (and optimize) implementation of ToObject.

src/code-factory.h

Index: src/code-factory.h
diff --git a/src/code-factory.h b/src/code-factory.h
index f750ab64962047ac1b8482a29d64f9a03cd53a79..1386f054bb89e916dc608dd9c79a4901852a5d5c 100644
--- a/src/code-factory.h
+++ b/src/code-factory.h
@@ -73,6 +73,7 @@ class CodeFactory final {
       ToBooleanStub::Types types = ToBooleanStub::Types());
 
   static Callable ToNumber(Isolate* isolate);
+  static Callable ToObject(Isolate* isolate);
 
   static Callable StringAdd(Isolate* isolate, StringAddFlags flags,
                             PretenureFlag pretenure_flag);