[runtime] further dismantle AccessorInfoHandling, reducing it to the single API usecase.

src/objects.h

 // Copyright 2015 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_OBJECTS_H_
 #define V8_OBJECTS_H_
 
 #include <iosfwd>
 
 #include "src/allocation.h"
@@ skipping 2047 matching lines @@
                                                uint32_t limit);
   // As PrepareElementsForSort, but only on objects where elements is
   // a dictionary, and it will stay a dictionary.  Collates undefined and
   // unexisting elements below limit from position zero of the elements.
   static Handle<Object> PrepareSlowElementsForSort(Handle<JSObject> object,
                                                    uint32_t limit);
 
   MUST_USE_RESULT static Maybe<bool> SetPropertyWithInterceptor(
       LookupIterator* it, ShouldThrow should_throw, Handle<Object> value);
 
-  // SetLocalPropertyIgnoreAttributes converts callbacks to fields. We need to
-  // grant an exemption to AccessorInfo callbacks in some cases.
-  enum AccessorInfoHandling { DEFAULT_HANDLING, DONT_FORCE_FIELD };
+  // The API currently still wants DefineOwnPropertyIgnoreAttributes to convert
+  // AccessorInfo objects to data fields. We allow FORCE_FIELD as an exception
+  // to the default behavior that calls the setter.
+  enum AccessorInfoHandling { FORCE_FIELD, DONT_FORCE_FIELD };
 
   MUST_USE_RESULT static MaybeHandle<Object> DefineOwnPropertyIgnoreAttributes(
       LookupIterator* it, Handle<Object> value, PropertyAttributes attributes,
-      AccessorInfoHandling handling = DEFAULT_HANDLING);
+      AccessorInfoHandling handling = DONT_FORCE_FIELD);
 
   MUST_USE_RESULT static Maybe<bool> DefineOwnPropertyIgnoreAttributes(
       LookupIterator* it, Handle<Object> value, PropertyAttributes attributes,
       ShouldThrow should_throw,
-      AccessorInfoHandling handling = DEFAULT_HANDLING);
+      AccessorInfoHandling handling = DONT_FORCE_FIELD);
 
   MUST_USE_RESULT static MaybeHandle<Object> SetOwnPropertyIgnoreAttributes(
       Handle<JSObject> object, Handle<Name> name, Handle<Object> value,
-      PropertyAttributes attributes,
-      AccessorInfoHandling handling = DEFAULT_HANDLING);
+      PropertyAttributes attributes);
 
   MUST_USE_RESULT static MaybeHandle<Object> SetOwnElementIgnoreAttributes(
       Handle<JSObject> object, uint32_t index, Handle<Object> value,
-      PropertyAttributes attributes,
-      AccessorInfoHandling handling = DEFAULT_HANDLING);
+      PropertyAttributes attributes);
 
   // Equivalent to one of the above depending on whether |name| can be converted
   // to an array index.
   MUST_USE_RESULT static MaybeHandle<Object>
-  DefinePropertyOrElementIgnoreAttributes(
-      Handle<JSObject> object, Handle<Name> name, Handle<Object> value,
-      PropertyAttributes attributes = NONE,
-      AccessorInfoHandling handling = DEFAULT_HANDLING);
+  DefinePropertyOrElementIgnoreAttributes(Handle<JSObject> object,
+                                          Handle<Name> name,
+                                          Handle<Object> value,
+                                          PropertyAttributes attributes = NONE);
 
   // Adds or reconfigures a property to attributes NONE. It will fail when it
   // cannot.
   MUST_USE_RESULT static Maybe<bool> CreateDataProperty(LookupIterator* it,
                                                         Handle<Object> value);
 
   static void AddProperty(Handle<JSObject> object, Handle<Name> name,
                           Handle<Object> value, PropertyAttributes attributes);
 
   MUST_USE_RESULT static Maybe<bool> AddDataElement(
@@ skipping 8671 matching lines @@
     }
     return value;
   }
 };
 
 
 }  // NOLINT, false-positive due to second-order macros.
 }  // NOLINT, false-positive due to second-order macros.
 
 #endif  // V8_OBJECTS_H_