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src/parser.cc

Index: src/parser.cc
diff --git a/src/parser.cc b/src/parser.cc
index 374b59c7a7e9b4e78707bd57d0ce94ad266e6bdf..d70e386564c576d1e9c107cb725f0be78dde2b60 100644
--- a/src/parser.cc
+++ b/src/parser.cc
@@ -5621,11 +5621,12 @@ Expression* Parser::CloseTemplateLiteral(TemplateLiteralState* state, int start,
     ZoneList<Expression*>* args = new (zone()) ZoneList<Expression*>(4, zone());
     args->Add(factory()->NewArrayLiteral(
                   const_cast<ZoneList<Expression*>*>(cooked_strings),
-                  cooked_idx, pos),
+                  cooked_idx, is_strong(language_mode()), pos),
               zone());
     args->Add(
         factory()->NewArrayLiteral(
-            const_cast<ZoneList<Expression*>*>(raw_strings), raw_idx, pos),
+            const_cast<ZoneList<Expression*>*>(raw_strings), raw_idx,
+            is_strong(language_mode()), pos),
         zone());
 
     // Ensure hash is suitable as a Smi value
@@ -5716,6 +5717,7 @@ ZoneList<v8::internal::Expression*>* Parser::PrepareSpreadArguments(
         }
         int literal_index = function_state_->NextMaterializedLiteralIndex();
         args->Add(factory()->NewArrayLiteral(unspread, literal_index,
+                                             is_strong(language_mode()),
                                              RelocInfo::kNoPosition),
                   zone());