Strip Interface class of most of its logic, make it all about Module exports

src/variables.h

 // Copyright 2011 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_VARIABLES_H_
 #define V8_VARIABLES_H_
 
 #include "src/ast-value-factory.h"
-#include "src/interface.h"
 #include "src/zone.h"
 
 namespace v8 {
 namespace internal {
 
 // The AST refers to variables via VariableProxies - placeholders for the actual
 // variables. Variables themselves are never directly referred to from the AST,
 // they are maintained by scopes, and referred to from VariableProxies and Slots
 // after binding and variable allocation.
 
@@ skipping 23 matching lines @@
     CONTEXT,
 
     // A named slot in a heap context.  name() is the variable name in the
     // context object on the heap, with lookup starting at the current
     // context.  index() is invalid.
     LOOKUP
   };
 
   Variable(Scope* scope, const AstRawString* name, VariableMode mode,
            bool is_valid_ref, Kind kind, InitializationFlag initialization_flag,
-           MaybeAssignedFlag maybe_assigned_flag = kNotAssigned,
-           Interface* interface = Interface::NewValue());
+           MaybeAssignedFlag maybe_assigned_flag = kNotAssigned);
 
   // Printing support
   static const char* Mode2String(VariableMode mode);
 
   bool IsValidReference() { return is_valid_ref_; }
 
   // The source code for an eval() call may refer to a variable that is
   // in an outer scope about which we don't know anything (it may not
   // be the script scope). scope() is NULL in that case. Currently the
   // scope is only used to follow the context chain length.
@@ skipping 51 matching lines @@
 
   void set_local_if_not_shadowed(Variable* local) {
     local_if_not_shadowed_ = local;
   }
 
   Location location() const { return location_; }
   int index() const { return index_; }
   InitializationFlag initialization_flag() const {
     return initialization_flag_;
   }
-  Interface* interface() const { return interface_; }
 
   void AllocateTo(Location location, int index) {
     location_ = location;
     index_ = index;
   }
 
   static int CompareIndex(Variable* const* v, Variable* const* w);
 
  private:
   Scope* scope_;
@@ skipping 11 matching lines @@
   Variable* local_if_not_shadowed_;
 
   // Valid as a reference? (const and this are not valid, for example)
   bool is_valid_ref_;
 
   // Usage info.
   bool force_context_allocation_;  // set by variable resolver
   bool is_used_;
   InitializationFlag initialization_flag_;
   MaybeAssignedFlag maybe_assigned_;
-
-  // Module type info.
-  Interface* interface_;
 };
 
 
 } }  // namespace v8::internal
 
 #endif  // V8_VARIABLES_H_