Revert of [strong] Object literals create strong objects

src/preparser.h

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef V8_PREPARSER_H
 #define V8_PREPARSER_H
 
 #include "src/v8.h"
 
 #include "src/bailout-reason.h"
@@ skipping 1322 matching lines @@
                                        int pos) {
     return PreParserExpression::Default();
   }
   PreParserExpression NewNumberLiteral(double number,
                                        int pos) {
     return PreParserExpression::Default();
   }
   PreParserExpression NewRegExpLiteral(PreParserIdentifier js_pattern,
                                        PreParserIdentifier js_flags,
                                        int literal_index,
-                                       bool is_strong,
                                        int pos) {
     return PreParserExpression::Default();
   }
   PreParserExpression NewArrayLiteral(PreParserExpressionList values,
                                       int literal_index,
-                                      bool is_strong,
                                       int pos) {
     return PreParserExpression::Default();
   }
   PreParserExpression NewObjectLiteralProperty(PreParserExpression key,
                                                PreParserExpression value,
                                                ObjectLiteralProperty::Kind kind,
                                                bool is_static,
                                                bool is_computed_name) {
     return PreParserExpression::Default();
   }
   PreParserExpression NewObjectLiteralProperty(PreParserExpression key,
                                                PreParserExpression value,
                                                bool is_static,
                                                bool is_computed_name) {
     return PreParserExpression::Default();
   }
   PreParserExpression NewObjectLiteral(PreParserExpressionList properties,
                                        int literal_index,
                                        int boilerplate_properties,
                                        bool has_function,
-                                       bool is_strong,
                                        int pos) {
     return PreParserExpression::Default();
   }
   PreParserExpression NewVariableProxy(void* variable) {
     return PreParserExpression::Default();
   }
   PreParserExpression NewProperty(PreParserExpression obj,
                                   PreParserExpression key,
                                   int pos) {
     if (obj.IsThis()) {
@@ skipping 825 matching lines @@
 
   IdentifierT js_pattern = this->GetNextSymbol(scanner());
   if (!scanner()->ScanRegExpFlags()) {
     Next();
     ReportMessage("malformed_regexp_flags");
     *ok = false;
     return Traits::EmptyExpression();
   }
   IdentifierT js_flags = this->GetNextSymbol(scanner());
   Next();
-  return factory()->NewRegExpLiteral(js_pattern, js_flags, literal_index,
-                                     is_strong(language_mode()), pos);
+  return factory()->NewRegExpLiteral(js_pattern, js_flags, literal_index, pos);
 }
 
 
 #define CHECK_OK  ok); \
   if (!*ok) return this->EmptyExpression(); \
   ((void)0
 #define DUMMY )  // to make indentation work
 #undef DUMMY
 
 // Used in functions where the return type is not ExpressionT.
@@ skipping 244 matching lines @@
     values->Add(elem, zone_);
     if (peek() != Token::RBRACK) {
       Expect(Token::COMMA, CHECK_OK);
     }
   }
   Expect(Token::RBRACK, CHECK_OK);
 
   // Update the scope information before the pre-parsing bailout.
   int literal_index = function_state_->NextMaterializedLiteralIndex();
 
-  return factory()->NewArrayLiteral(values, literal_index,
-                                    is_strong(language_mode()), pos);
+  return factory()->NewArrayLiteral(values, literal_index, pos);
 }
 
 
 template <class Traits>
 typename ParserBase<Traits>::ExpressionT ParserBase<Traits>::ParsePropertyName(
     IdentifierT* name, bool* is_get, bool* is_set, bool* is_static,
     bool* is_computed_name, ExpressionClassifier* classifier, bool* ok) {
   Token::Value token = peek();
   int pos = peek_position();
 
@@ skipping 235 matching lines @@
   }
   Expect(Token::RBRACE, CHECK_OK);
 
   // Computation of literal_index must happen before pre parse bailout.
   int literal_index = function_state_->NextMaterializedLiteralIndex();
 
   return factory()->NewObjectLiteral(properties,
                                      literal_index,
                                      number_of_boilerplate_properties,
                                      has_function,
-                                     is_strong(language_mode()),
                                      pos);
 }
 
 
 template <class Traits>
 typename Traits::Type::ExpressionList ParserBase<Traits>::ParseArguments(
     Scanner::Location* first_spread_arg_loc, ExpressionClassifier* classifier,
     bool* ok) {
   // Arguments ::
   //   '(' (AssignmentExpression)*[','] ')'
@@ skipping 1179 matching lines @@
       *ok = false;
       return;
     }
     has_seen_constructor_ = true;
     return;
   }
 }
 } }  // v8::internal
 
 #endif  // V8_PREPARSER_H