Remove unused Module-related AST nodes and associated codegen

src/typing.cc

Index: src/typing.cc
diff --git a/src/typing.cc b/src/typing.cc
index cbd40f37159e3fea52c107e04c9e0d2fd74d418a..ab015717e83c2dd9868dc9223296a44c0f9a4cfd 100644
--- a/src/typing.cc
+++ b/src/typing.cc
@@ -796,11 +796,6 @@ void AstTyper::VisitFunctionDeclaration(FunctionDeclaration* declaration) {
 }
 
 
-void AstTyper::VisitModuleDeclaration(ModuleDeclaration* declaration) {
-  RECURSE(Visit(declaration->module()));
-}
-
-
 void AstTyper::VisitImportDeclaration(ImportDeclaration* declaration) {
 }
 
@@ -809,23 +804,4 @@ void AstTyper::VisitExportDeclaration(ExportDeclaration* declaration) {
 }
 
 
-void AstTyper::VisitModuleLiteral(ModuleLiteral* module) {
-  RECURSE(Visit(module->body()));
-}
-
-
-void AstTyper::VisitModulePath(ModulePath* module) {
-  RECURSE(Visit(module->module()));
-}
-
-
-void AstTyper::VisitModuleUrl(ModuleUrl* module) {
-}
-
-
-void AstTyper::VisitModuleStatement(ModuleStatement* stmt) {
-  RECURSE(Visit(stmt->body()));
-}
-
-
 } }  // namespace v8::internal