Revert "Make Function.length and Function.name configurable properties."

src/bootstrapper.cc

Index: src/bootstrapper.cc
diff --git a/src/bootstrapper.cc b/src/bootstrapper.cc
index 62109b5ae5c2fa284600dbdb093e3b5594fa4a40..ef802ba987c8208a1a3559597c8029f450ed5c7b 100644
--- a/src/bootstrapper.cc
+++ b/src/bootstrapper.cc
@@ -426,32 +426,31 @@ void Genesis::SetFunctionInstanceDescriptor(
   if (prototypeMode != DONT_ADD_PROTOTYPE) {
     prototype = factory()->NewForeign(&Accessors::FunctionPrototype);
   }
-  PropertyAttributes ro_attribs = static_cast<PropertyAttributes>(
+  PropertyAttributes attribs = static_cast<PropertyAttributes>(
       DONT_ENUM | DONT_DELETE | READ_ONLY);
-  PropertyAttributes roc_attribs = static_cast<PropertyAttributes>(
-      DONT_ENUM | READ_ONLY);
   map->set_instance_descriptors(*descriptors);
 
   {  // Add length.
-    CallbacksDescriptor d(*factory()->length_string(), *length, roc_attribs);
+    CallbacksDescriptor d(*factory()->length_string(), *length, attribs);
     map->AppendDescriptor(&d, witness);
   }
   {  // Add name.
-    CallbacksDescriptor d(*factory()->name_string(), *name, roc_attribs);
+    CallbacksDescriptor d(*factory()->name_string(), *name, attribs);
     map->AppendDescriptor(&d, witness);
   }
   {  // Add arguments.
-    CallbacksDescriptor d(*factory()->arguments_string(), *args, ro_attribs);
+    CallbacksDescriptor d(*factory()->arguments_string(), *args, attribs);
     map->AppendDescriptor(&d, witness);
   }
   {  // Add caller.
-    CallbacksDescriptor d(*factory()->caller_string(), *caller, ro_attribs);
+    CallbacksDescriptor d(*factory()->caller_string(), *caller, attribs);
     map->AppendDescriptor(&d, witness);
   }
   if (prototypeMode != DONT_ADD_PROTOTYPE) {
     // Add prototype.
-    PropertyAttributes attribs = (prototypeMode == ADD_WRITEABLE_PROTOTYPE)
-        ? static_cast<PropertyAttributes>(ro_attribs & ~READ_ONLY) : ro_attribs;
+    if (prototypeMode == ADD_WRITEABLE_PROTOTYPE) {
+      attribs = static_cast<PropertyAttributes>(attribs & ~READ_ONLY);
+    }
     CallbacksDescriptor d(*factory()->prototype_string(), *prototype, attribs);
     map->AppendDescriptor(&d, witness);
   }
@@ -569,16 +568,14 @@ void Genesis::SetStrictFunctionInstanceDescriptor(
       static_cast<PropertyAttributes>(DONT_ENUM | DONT_DELETE);
   PropertyAttributes ro_attribs =
       static_cast<PropertyAttributes>(DONT_ENUM | DONT_DELETE | READ_ONLY);
-  PropertyAttributes roc_attribs =
-      static_cast<PropertyAttributes>(DONT_ENUM | READ_ONLY);
   map->set_instance_descriptors(*descriptors);
 
   {  // Add length.
-    CallbacksDescriptor d(*factory()->length_string(), *length, roc_attribs);
+    CallbacksDescriptor d(*factory()->length_string(), *length, ro_attribs);
     map->AppendDescriptor(&d, witness);
   }
   {  // Add name.
-    CallbacksDescriptor d(*factory()->name_string(), *name, roc_attribs);
+    CallbacksDescriptor d(*factory()->name_string(), *name, ro_attribs);
     map->AppendDescriptor(&d, witness);
   }
   {  // Add arguments.