Remove unused Module-related AST nodes and associated codegen

src/x64/full-codegen-x64.cc

Index: src/x64/full-codegen-x64.cc
diff --git a/src/x64/full-codegen-x64.cc b/src/x64/full-codegen-x64.cc
index 50752cf06bd88c62f93d254ab01fcaf90f38a01e..94da774891d40872bfa5302e32a52e760bf41823 100644
--- a/src/x64/full-codegen-x64.cc
+++ b/src/x64/full-codegen-x64.cc
@@ -921,37 +921,6 @@ void FullCodeGenerator::VisitFunctionDeclaration(
 }
 
 
-void FullCodeGenerator::VisitModuleDeclaration(ModuleDeclaration* declaration) {
-  Variable* variable = declaration->proxy()->var();
-  ModuleDescriptor* descriptor = declaration->module()->descriptor();
-  DCHECK(variable->location() == Variable::CONTEXT);
-  DCHECK(descriptor->IsFrozen());
-
-  Comment cmnt(masm_, "[ ModuleDeclaration");
-  EmitDebugCheckDeclarationContext(variable);
-
-  // Load instance object.
-  __ LoadContext(rax, scope_->ContextChainLength(scope_->ScriptScope()));
-  __ movp(rax, ContextOperand(rax, descriptor->Index()));
-  __ movp(rax, ContextOperand(rax, Context::EXTENSION_INDEX));
-
-  // Assign it.
-  __ movp(ContextOperand(rsi, variable->index()), rax);
-  // We know that we have written a module, which is not a smi.
-  __ RecordWriteContextSlot(rsi,
-                            Context::SlotOffset(variable->index()),
-                            rax,
-                            rcx,
-                            kDontSaveFPRegs,
-                            EMIT_REMEMBERED_SET,
-                            OMIT_SMI_CHECK);
-  PrepareForBailoutForId(declaration->proxy()->id(), NO_REGISTERS);
-
-  // Traverse into body.
-  Visit(declaration->module());
-}
-
-
 void FullCodeGenerator::VisitImportDeclaration(ImportDeclaration* declaration) {
   VariableProxy* proxy = declaration->proxy();
   Variable* variable = proxy->var();