Remove unused is_class_scope bit from Scope and ScopeInfo

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/ast-literal-reindexer.h"
 #include "src/bailout-reason.h"
@@ skipping 4403 matching lines @@
     ReportMessageAt(class_name_location, MessageTemplate::kStrictEvalArguments);
     *ok = false;
     return NULL;
   }
   if (is_strong(language_mode()) && IsUndefined(name)) {
     ReportMessageAt(class_name_location, MessageTemplate::kStrongUndefined);
     *ok = false;
     return NULL;
   }
 
-  // Create a block scope which is additionally tagged as class scope; this is
-  // important for resolving variable references to the class name in the strong
-  // mode.
   Scope* block_scope = NewScope(scope_, BLOCK_SCOPE);
-  block_scope->tag_as_class_scope();
   BlockState block_state(&scope_, block_scope);
   scope_->SetLanguageMode(
       static_cast<LanguageMode>(scope_->language_mode() | STRICT_BIT));
   scope_->SetScopeName(name);
 
   VariableProxy* proxy = NULL;
   if (name != NULL) {
     proxy = NewUnresolved(name, CONST);
     const bool is_class_declaration = true;
     Declaration* declaration = factory()->NewVariableDeclaration(
@@ skipping 1466 matching lines @@
 Expression* Parser::SpreadCallNew(Expression* function,
                                   ZoneList<v8::internal::Expression*>* args,
                                   int pos) {
   args->InsertAt(0, function, zone());
 
   return factory()->NewCallRuntime(
       ast_value_factory()->reflect_construct_string(), NULL, args, pos);
 }
 }  // namespace internal
 }  // namespace v8