[strong] Refactor ObjectStrength into a replacement for strong boolean args

src/factory.cc

Index: src/factory.cc
diff --git a/src/factory.cc b/src/factory.cc
index 4aca8854565c06b97d33fd11a9783313b3434613..a16e6fba05edbc7c63e16b54ca3d541531d85c43 100644
--- a/src/factory.cc
+++ b/src/factory.cc
@@ -1609,11 +1609,11 @@ Handle<JSObject> Factory::NewJSObjectFromMap(
 
 
 Handle<JSArray> Factory::NewJSArray(ElementsKind elements_kind,
-                                    ObjectStrength strength,
+                                    Strength strength,
                                     PretenureFlag pretenure) {
   Map* map = isolate()->get_initial_js_array_map(elements_kind, strength);
   if (map == nullptr) {
-    DCHECK(strength == WEAK);
+    DCHECK(strength == Strength::WEAK);
     Context* native_context = isolate()->context()->native_context();
     JSFunction* array_function = native_context->array_function();
     map = array_function->initial_map();
@@ -1623,7 +1623,7 @@ Handle<JSArray> Factory::NewJSArray(ElementsKind elements_kind,
 
 
 Handle<JSArray> Factory::NewJSArray(ElementsKind elements_kind, int length,
-                                    int capacity, ObjectStrength strength,
+                                    int capacity, Strength strength,
                                     ArrayStorageAllocationMode mode,
                                     PretenureFlag pretenure) {
   Handle<JSArray> array = NewJSArray(elements_kind, strength, pretenure);
@@ -1634,8 +1634,7 @@ Handle<JSArray> Factory::NewJSArray(ElementsKind elements_kind, int length,
 
 Handle<JSArray> Factory::NewJSArrayWithElements(Handle<FixedArrayBase> elements,
                                                 ElementsKind elements_kind,
-                                                int length,
-                                                ObjectStrength strength,
+                                                int length, Strength strength,
                                                 PretenureFlag pretenure) {
   DCHECK(length <= elements->length());
   Handle<JSArray> array = NewJSArray(elements_kind, strength, pretenure);