Revert of Internalize strings in-place

src/elements.cc

Index: src/elements.cc
diff --git a/src/elements.cc b/src/elements.cc
index 01842630da4854a33cdc0e96d5e9f26acdba1917..32581bd8aead1505a830ce60ba525b8728862ca5 100644
--- a/src/elements.cc
+++ b/src/elements.cc
@@ -187,7 +187,7 @@
                                             : SKIP_WRITE_BARRIER;
   Isolate* isolate = from->GetIsolate();
   for (int i = 0; i < copy_size; i++) {
-    int entry = from->FindEntry(isolate, i + from_start);
+    int entry = from->FindEntry(i + from_start);
     if (entry != SeededNumberDictionary::kNotFound) {
       Object* value = from->ValueAt(entry);
       DCHECK(!value->IsTheHole(isolate));
@@ -417,9 +417,8 @@
   if (to_start + copy_size > to_length) {
     copy_size = to_length - to_start;
   }
-  Isolate* isolate = from->GetIsolate();
   for (int i = 0; i < copy_size; i++) {
-    int entry = from->FindEntry(isolate, i + from_start);
+    int entry = from->FindEntry(i + from_start);
     if (entry != SeededNumberDictionary::kNotFound) {
       to->set(i + to_start, from->ValueAt(entry)->Number());
     } else {
@@ -1629,7 +1628,7 @@
     // Iterate through entire range, as accessing elements out of order is
     // observable
     for (uint32_t k = start_from; k < length; ++k) {
-      int entry = dictionary->FindEntry(isolate, k);
+      int entry = dictionary->FindEntry(k);
       if (entry == SeededNumberDictionary::kNotFound) {
         if (search_for_hole) return Just(true);
         continue;
@@ -1695,7 +1694,7 @@
     // Iterate through entire range, as accessing elements out of order is
     // observable.
     for (uint32_t k = start_from; k < length; ++k) {
-      int entry = dictionary->FindEntry(isolate, k);
+      int entry = dictionary->FindEntry(k);
       if (entry == SeededNumberDictionary::kNotFound) {
         continue;
       }