Remove unused Module-related AST nodes and associated codegen

src/hydrogen.cc

 // Copyright 2013 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/hydrogen.h"
 
 #include <sstream>
 
 #include "src/v8.h"
 
@@ skipping 11585 matching lines @@
         Add<HSimulate>(proxy->id(), REMOVABLE_SIMULATE);
       }
       break;
     }
     case Variable::LOOKUP:
       return Bailout(kUnsupportedLookupSlotInDeclaration);
   }
 }
 
 
-void HOptimizedGraphBuilder::VisitModuleDeclaration(
-    ModuleDeclaration* declaration) {
-  return Bailout(kModuleDeclaration);
-}
-
-
 void HOptimizedGraphBuilder::VisitImportDeclaration(
     ImportDeclaration* declaration) {
   UNREACHABLE();
 }
 
 
 void HOptimizedGraphBuilder::VisitExportDeclaration(
     ExportDeclaration* declaration) {
   UNREACHABLE();
 }
 
 
-void HOptimizedGraphBuilder::VisitModuleLiteral(ModuleLiteral* module) {
-  UNREACHABLE();
-}
-
-
-void HOptimizedGraphBuilder::VisitModulePath(ModulePath* module) {
-  UNREACHABLE();
-}
-
-
-void HOptimizedGraphBuilder::VisitModuleUrl(ModuleUrl* module) {
-  UNREACHABLE();
-}
-
-
-void HOptimizedGraphBuilder::VisitModuleStatement(ModuleStatement* stmt) {
-  UNREACHABLE();
-}
-
-
 // Generators for inline runtime functions.
 // Support for types.
 void HOptimizedGraphBuilder::GenerateIsSmi(CallRuntime* call) {
   DCHECK(call->arguments()->length() == 1);
   CHECK_ALIVE(VisitForValue(call->arguments()->at(0)));
   HValue* value = Pop();
   HIsSmiAndBranch* result = New<HIsSmiAndBranch>(value);
   return ast_context()->ReturnControl(result, call->id());
 }
 
@@ skipping 1452 matching lines @@
   if (ShouldProduceTraceOutput()) {
     isolate()->GetHTracer()->TraceHydrogen(name(), graph_);
   }
 
 #ifdef DEBUG
   graph_->Verify(false);  // No full verify.
 #endif
 }
 
 } }  // namespace v8::internal