Experimental: remove duplicate script scope.

src/parser.cc

 // 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.
 
 #include "src/v8.h"
 
 #include "src/api.h"
 #include "src/ast.h"
 #include "src/bailout-reason.h"
 #include "src/base/platform/platform.h"
@@ skipping 976 matching lines @@
       // string table to internalize strings and values right after they're
       // created. This kind of parsing can only be done in the main thread.
       DCHECK(parsing_on_main_thread_);
       ast_value_factory()->Internalize(info->isolate());
     }
     original_scope_ = *scope;
     if (info->is_eval()) {
       if (!(*scope)->is_script_scope() || is_strict(info->language_mode())) {
         *scope = NewScope(*scope, EVAL_SCOPE);
       }
-    } else if (info->is_global()) {
-      *scope = NewScope(*scope, SCRIPT_SCOPE);
     } else if (info->is_module()) {
       *scope = NewScope(*scope, MODULE_SCOPE);
     }
     (*scope)->set_start_position(0);
     // End position will be set by the caller.
 
     // Compute the parsing mode.
     Mode mode = (FLAG_lazy && allow_lazy()) ? PARSE_LAZILY : PARSE_EAGERLY;
     if (allow_natives() || extension_ != NULL ||
         (*scope)->is_eval_scope()) {
@@ skipping 4515 matching lines @@
     } else {
       const uc16* data = reinterpret_cast<const uc16*>(raw_string->raw_data());
       running_hash = StringHasher::ComputeRunningHash(running_hash, data,
                                                       raw_string->length());
     }
   }
 
   return running_hash;
 }
 } }  // namespace v8::internal