[modules] Partial scope info support of modules

src/ast/scopes.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_AST_SCOPES_H_
 #define V8_AST_SCOPES_H_
 
 #include "src/ast/ast.h"
 #include "src/base/hashmap.h"
 #include "src/globals.h"
@@ skipping 323 matching lines @@
     return static_cast<AstRawString*>(variables_.Start()->key);
   }
 
   // ---------------------------------------------------------------------------
   // Variable allocation.
 
   // Collect variables in this scope. Note that the function variable - if
   // present - is not collected and should be handled separately.
   void CollectVariables(ZoneList<Variable*>* stack_locals,
                         ZoneList<Variable*>* context_locals,
-                        ZoneList<Variable*>* context_globals);
+                        ZoneList<Variable*>* context_globals,
+                        ZoneList<Variable*>* module_vars = nullptr);
 
   // Result of variable allocation.
   int num_stack_slots() const { return num_stack_slots_; }
   int num_heap_slots() const { return num_heap_slots_; }
   int num_global_slots() const { return num_global_slots_; }
 
   int StackLocalCount() const;
   int ContextLocalCount() const;
   int ContextGlobalCount() const;
 
@@ skipping 476 matching lines @@
   // Convenience variable; function scopes only.
   Variable* arguments_;
   // Convenience variable; Subclass constructor only
   Variable* this_function_;
 };
 
 class ModuleScope final : public DeclarationScope {
  public:
   ModuleScope(DeclarationScope* script_scope,
               AstValueFactory* ast_value_factory);
+  ModuleScope(Isolate* isolate, Handle<ScopeInfo> scope_info,
+              AstValueFactory* ast_value_factory);
 
   ModuleDescriptor* module() const {
     DCHECK_NOT_NULL(module_descriptor_);
     return module_descriptor_;
   }
 
   // Set MODULE as VariableLocation for all variables that will live in some
   // module's export table.
   void AllocateModuleVariables();
 
  private:
   ModuleDescriptor* module_descriptor_;
 };
 
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_AST_SCOPES_H_