Readd default function variables upon scope reset for preparse abort

src/parsing/parser-base.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_PARSER_BASE_H
 #define V8_PARSING_PARSER_BASE_H
 
 #include "src/ast/ast.h"
 #include "src/ast/scopes.h"
 #include "src/bailout-reason.h"
@@ skipping 711 matching lines @@
     DCHECK_NOT_NULL(parent);
     return new (zone()) Scope(zone(), parent, scope_type);
   }
 
   DeclarationScope* NewFunctionScope(FunctionKind kind) const {
     DCHECK(ast_value_factory());
     DeclarationScope* result =
         new (zone()) DeclarationScope(zone(), scope(), FUNCTION_SCOPE, kind);
     // TODO(verwaest): Move into the DeclarationScope constructor.
     if (!IsArrowFunction(kind)) {
-      result->DeclareThis(ast_value_factory());
       result->DeclareDefaultFunctionVariables(ast_value_factory());
     }
     return result;
   }
 
   V8_INLINE DeclarationScope* GetDeclarationScope() const {
     return scope()->GetDeclarationScope();
   }
   V8_INLINE DeclarationScope* GetClosureScope() const {
     return scope()->GetClosureScope();
@@ skipping 3182 matching lines @@
            formal_parameters.scope
                ->AllowsLazyParsingWithoutUnresolvedVariables());
       // TODO(marja): consider lazy-parsing inner arrow functions too. is_this
       // handling in Scope::ResolveVariable needs to change.
       if (is_lazily_parsed) {
         Scanner::BookmarkScope bookmark(scanner());
         bookmark.Set();
         LazyParsingResult result = impl()->SkipLazyFunctionBody(
             &materialized_literal_count, &expected_property_count, false, true,
             CHECK_OK);
-        formal_parameters.scope->ResetAfterPreparsing(result ==
-                                                      kLazyParsingAborted);
+        formal_parameters.scope->ResetAfterPreparsing(
+            ast_value_factory_, result == kLazyParsingAborted);
 
         if (formal_parameters.materialized_literals_count > 0) {
           materialized_literal_count +=
               formal_parameters.materialized_literals_count;
         }
 
         if (result == kLazyParsingAborted) {
           bookmark.Apply();
           // Trigger eager (re-)parsing, just below this block.
           is_lazily_parsed = false;
@@ skipping 1490 matching lines @@
     has_seen_constructor_ = true;
     return;
   }
 }
 
 
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_PARSING_PARSER_BASE_H