Turn AllowsLazyParsingWithoutUnresolvedVariables into a whitelist stopping at the outer parsed cont…

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 3906 matching lines @@
   int expected_property_count = -1;
 
   FunctionKind kind = formal_parameters.scope->function_kind();
   FunctionLiteral::EagerCompileHint eager_compile_hint =
       default_eager_compile_hint_;
   bool can_preparse = mode() == PARSE_LAZILY &&
                       eager_compile_hint == FunctionLiteral::kShouldLazyCompile;
   // TODO(marja): consider lazy-parsing inner arrow functions too. is_this
   // handling in Scope::ResolveVariable needs to change.
   bool is_lazy_top_level_function =
-      can_preparse && scope()->AllowsLazyParsingWithoutUnresolvedVariables();
+      can_preparse && impl()->AllowsLazyParsingWithoutUnresolvedVariables();
   bool should_be_used_once_hint = false;
   {
     FunctionState function_state(&function_state_, &scope_state_,
                                  formal_parameters.scope);
 
     function_state.SkipMaterializedLiterals(
         formal_parameters.materialized_literals_count);
 
     impl()->ReindexLiterals(formal_parameters);
 
@@ skipping 1508 matching lines @@
     has_seen_constructor_ = true;
     return;
   }
 }
 
 
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_PARSING_PARSER_BASE_H