Made Isolate a mandatory parameter for everything Handle-related.

src/x64/lithium-codegen-x64.cc

Index: src/x64/lithium-codegen-x64.cc
diff --git a/src/x64/lithium-codegen-x64.cc b/src/x64/lithium-codegen-x64.cc
index 9913ee3a9f593bc518ca0afb86a5423acbadbc1f..8a35dff909ae016a90a55493772058c66daa92cf 100644
--- a/src/x64/lithium-codegen-x64.cc
+++ b/src/x64/lithium-codegen-x64.cc
@@ -5176,7 +5176,8 @@ void LCodeGen::EmitDeepCopy(Handle<JSObject> object,
   // Copy in-object properties.
   for (int i = 0; i < inobject_properties; i++) {
     int total_offset = object_offset + object->GetInObjectPropertyOffset(i);
-    Handle<Object> value = Handle<Object>(object->InObjectPropertyAt(i));
+    Handle<Object> value = Handle<Object>(object->InObjectPropertyAt(i),
+                                          isolate());
     if (value->IsJSObject()) {
       Handle<JSObject> value_object = Handle<JSObject>::cast(value);
       __ lea(rcx, Operand(result, *offset));
@@ -5224,7 +5225,7 @@ void LCodeGen::EmitDeepCopy(Handle<JSObject> object,
       Handle<FixedArray> fast_elements = Handle<FixedArray>::cast(elements);
       for (int i = 0; i < elements_length; i++) {
         int total_offset = elements_offset + FixedArray::OffsetOfElementAt(i);
-        Handle<Object> value(fast_elements->get(i));
+        Handle<Object> value(fast_elements->get(i), isolate());
         if (value->IsJSObject()) {
           Handle<JSObject> value_object = Handle<JSObject>::cast(value);
           __ lea(rcx, Operand(result, *offset));