Get rid of static module allocation, do it in code.

src/rewriter.cc

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 91 matching lines @@
   // list of assignments corresponding to the initialization expressions.
   // While unclear from the spec (ECMA-262, 3rd., 12.2), the value of
   // a variable declaration with initialization expression is 'undefined'
   // with some JS VMs: For instance, using smjs, print(eval('var x = 7'))
   // returns 'undefined'. To obtain the same behavior with v8, we need
   // to prevent rewriting in that case.
   if (!node->is_initializer_block()) Process(node->statements());
 }
 
 
+void Processor::VisitModuleStatement(ModuleStatement* node) {
+  bool set_after_body = is_set_;
+  Visit(node->body());
+  is_set_ = is_set_ && set_after_body;
+}
+
+
 void Processor::VisitExpressionStatement(ExpressionStatement* node) {
   // Rewrite : <x>; -> .result = <x>;
   if (!is_set_ && !node->expression()->IsThrow()) {
     node->set_expression(SetResult(node->expression()));
     if (!in_try_) is_set_ = true;
   }
 }
 
 
 void Processor::VisitIfStatement(IfStatement* node) {
@@ skipping 128 matching lines @@
     if (processor.result_assigned()) {
       ASSERT(function->end_position() != RelocInfo::kNoPosition);
       // Set the position of the assignment statement one character past the
       // source code, such that it definitely is not in the source code range
       // of an immediate inner scope. For example in
       //   eval('with ({x:1}) x = 1');
       // the end position of the function generated for executing the eval code
       // coincides with the end of the with scope which is the position of '1'.
       int position = function->end_position();
       VariableProxy* result_proxy = processor.factory()->NewVariableProxy(
-          result->name(), false, Interface::NewValue(), position);
+          result->name(), false, result->interface(), position);
       result_proxy->BindTo(result);
       Statement* result_statement =
           processor.factory()->NewReturnStatement(result_proxy);
       result_statement->set_statement_pos(position);
       body->Add(result_statement, info->zone());
     }
   }
 
   return true;
 }
 
 
 } }  // namespace v8::internal