Remove unused Module-related AST nodes and associated codegen

src/full-codegen.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_FULL_CODEGEN_H_
 #define V8_FULL_CODEGEN_H_
 
 #include "src/v8.h"
 
 #include "src/allocation.h"
@@ skipping 405 matching lines @@
     // the expression.
   }
 
   void VisitInDuplicateContext(Expression* expr);
 
   void VisitDeclarations(ZoneList<Declaration*>* declarations) override;
   void DeclareModules(Handle<FixedArray> descriptions);
   void DeclareGlobals(Handle<FixedArray> pairs);
   int DeclareGlobalsFlags();
 
-  // Generate code to allocate all (including nested) modules and contexts.
-  // Because of recursive linking and the presence of module alias declarations,
-  // this has to be a separate pass _before_ populating or executing any module.
-  void AllocateModules(ZoneList<Declaration*>* declarations);
-
   // Generate code to create an iterator result object.  The "value" property is
   // set to a value popped from the stack, and "done" is set according to the
   // argument.  The result object is left in the result register.
   void EmitCreateIteratorResult(bool done);
 
   // Try to perform a comparison as a fast inlined literal compare if
   // the operands allow it.  Returns true if the compare operations
   // has been matched and all code generated; false otherwise.
   bool TryLiteralCompare(CompareOperation* compare);
 
@@ skipping 659 matching lines @@
 
   Address start_;
   Address instruction_start_;
   uint32_t length_;
 };
 
 
 } }  // namespace v8::internal
 
 #endif  // V8_FULL_CODEGEN_H_