Split NewScope into NewScope and NewScopeWithParent

src/parsing/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_PARSING_PREPARSER_H
 #define V8_PARSING_PREPARSER_H
 
 #include "src/ast/scopes.h"
 #include "src/bailout-reason.h"
 #include "src/base/hashmap.h"
@@ skipping 1026 matching lines @@
   // during parsing.
   PreParseResult PreParseProgram(int* materialized_literals = 0,
                                  bool is_module = false) {
     DCHECK_NULL(scope_state_);
     Scope* scope = NewScriptScope();
 
     // ModuleDeclarationInstantiation for Source Text Module Records creates a
     // new Module Environment Record whose outer lexical environment record is
     // the global scope.
     if (is_module) {
-      scope = NewScope(scope, MODULE_SCOPE);
+      scope = NewScopeWithParent(scope, MODULE_SCOPE);
     }
 
     PreParserFactory factory(nullptr);
     FunctionState top_scope(&function_state_, &scope_state_, scope,
                             kNormalFunction, &factory);
     bool ok = true;
     int start_position = scanner()->peek_location().beg_pos;
     parsing_module_ = is_module;
     ParseStatementList(Token::EOS, &ok);
     if (stack_overflow()) return kPreParseStackOverflow;
@@ skipping 182 matching lines @@
   return PreParserExpression::Default();
 }
 
 PreParserStatementList PreParser::ParseEagerFunctionBody(
     PreParserIdentifier function_name, int pos,
     const PreParserFormalParameters& parameters, FunctionKind kind,
     FunctionLiteral::FunctionType function_type, bool* ok) {
   ParsingModeScope parsing_mode(this, PARSE_EAGERLY);
 
   Scope* inner_scope = scope();
-  if (!parameters.is_simple) inner_scope = NewScope(scope(), BLOCK_SCOPE);
+  if (!parameters.is_simple) inner_scope = NewScope(BLOCK_SCOPE);
 
   {
     BlockState block_state(&scope_state_, inner_scope);
     ParseStatementList(Token::RBRACE, ok);
     if (!*ok) return PreParserStatementList();
   }
 
   Expect(Token::RBRACE, ok);
   return PreParserStatementList();
 }
 
 
 PreParserStatementList PreParserTraits::ParseEagerFunctionBody(
     PreParserIdentifier function_name, int pos,
     const PreParserFormalParameters& parameters, FunctionKind kind,
     FunctionLiteral::FunctionType function_type, bool* ok) {
   return pre_parser_->ParseEagerFunctionBody(function_name, pos, parameters,
                                              kind, function_type, ok);
 }
 
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_PARSING_PREPARSER_H