Remove strong mode support from materialized literals.

src/parsing/parser.cc

Index: src/parsing/parser.cc
diff --git a/src/parsing/parser.cc b/src/parsing/parser.cc
index 9daee95600d6424a0621c32d727fe89c0f126a88..5c6f1aa8f433229e9426c96f236d748684af70cc 100644
--- a/src/parsing/parser.cc
+++ b/src/parsing/parser.cc
@@ -5327,12 +5327,11 @@ 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, is_strong(language_mode()), pos),
+                  cooked_idx, pos),
               zone());
     args->Add(
         factory()->NewArrayLiteral(
-            const_cast<ZoneList<Expression*>*>(raw_strings), raw_idx,
-            is_strong(language_mode()), pos),
+            const_cast<ZoneList<Expression*>*>(raw_strings), raw_idx, pos),
         zone());
 
     // Ensure hash is suitable as a Smi value
@@ -5421,7 +5420,6 @@ 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());