Revert of Remove redundant ParseInfo::scope_.

src/ast/scopes.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/ast/scopes.h"
 
 #include <set>
 
 #include "src/accessors.h"
 #include "src/bootstrapper.h"
@@ skipping 350 matching lines @@
   DCHECK(is_declaration_scope());
   return static_cast<const DeclarationScope*>(this);
 }
 
 int Scope::num_parameters() const {
   return is_declaration_scope() ? AsDeclarationScope()->num_parameters() : 0;
 }
 
 bool Scope::Analyze(ParseInfo* info) {
   DCHECK(info->literal() != NULL);
+  DCHECK(info->scope() == NULL);
   DeclarationScope* scope = info->literal()->scope();
   DeclarationScope* top = scope;
 
   // Traverse the scope tree up to the first unresolved scope or the global
   // scope and start scope resolution and variable allocation from that scope.
   // Such a scope is always a closure-scope, so always skip to the next closure
   // scope.
   while (!top->is_script_scope() &&
          !top->outer_scope()->already_resolved()) {
     top = top->outer_scope()->GetClosureScope();
   }
 
   // Allocate the variables.
   {
     AstNodeFactory ast_node_factory(info->ast_value_factory());
     if (!top->AllocateVariables(info, &ast_node_factory)) return false;
   }
 
 #ifdef DEBUG
   if (info->script_is_native() ? FLAG_print_builtin_scopes
                                : FLAG_print_scopes) {
     scope->Print();
   }
   scope->CheckScopePositions();
   scope->CheckZones();
 #endif
 
+  info->set_scope(scope);
   return true;
 }
 
 void DeclarationScope::DeclareThis(AstValueFactory* ast_value_factory) {
   DCHECK(!already_resolved());
   DCHECK(is_declaration_scope());
   DCHECK(has_this_declaration());
 
   bool subclass_constructor = IsSubclassConstructor(function_kind_);
   Variable* var = variables_.Declare(
@@ skipping 1371 matching lines @@
       function != NULL && function->proxy()->var()->IsContextSlot();
   return num_heap_slots() - Context::MIN_CONTEXT_SLOTS - num_global_slots() -
          (is_function_var_in_context ? 1 : 0);
 }
 
 
 int Scope::ContextGlobalCount() const { return num_global_slots(); }
 
 }  // namespace internal
 }  // namespace v8