Generator object "next" method takes optional send value

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 62c6073a2fe96c333f07192ac156ed8b88aaa048..53d7027764d6a8ab742bc8eea30b2d6aeceaa06d 100644
--- a/src/x64/full-codegen-x64.cc
+++ b/src/x64/full-codegen-x64.cc
@@ -2012,10 +2012,10 @@ void FullCodeGenerator::VisitYield(Yield* expr) {
       // [sp + 1 * kPointerSize] iter
       // [sp + 0 * kPointerSize] g
 
-      Label l_catch, l_try, l_resume, l_send, l_call, l_loop;
+      Label l_catch, l_try, l_resume, l_next, l_call, l_loop;
       // Initial send value is undefined.
       __ LoadRoot(rax, Heap::kUndefinedValueRootIndex);
-      __ jmp(&l_send);
+      __ jmp(&l_next);
 
       // catch (e) { receiver = iter; f = iter.throw; arg = e; goto l_call; }
       __ bind(&l_catch);
@@ -2045,15 +2045,15 @@ void FullCodeGenerator::VisitYield(Yield* expr) {
       __ bind(&l_resume);                                // received in rax
       __ PopTryHandler();
 
-      // receiver = iter; f = iter.send; arg = received;
-      __ bind(&l_send);
+      // receiver = iter; f = iter.next; arg = received;
+      __ bind(&l_next);
       __ movq(rcx, Operand(rsp, 1 * kPointerSize));      // iter
       __ push(rcx);                                      // iter
       __ push(rax);                                      // received
       __ movq(rax, rcx);                                 // iter
-      __ LoadRoot(rcx, Heap::ksend_stringRootIndex);     // "send"
-      Handle<Code> send_ic = isolate()->builtins()->LoadIC_Initialize();
-      CallIC(send_ic);                                   // iter.send in rax
+      __ LoadRoot(rcx, Heap::knext_stringRootIndex);     // "next"
+      Handle<Code> next_ic = isolate()->builtins()->LoadIC_Initialize();
+      CallIC(next_ic);                                   // iter.next in rax
 
       // result = f.call(receiver, arg);
       __ bind(&l_call);
@@ -2155,7 +2155,7 @@ void FullCodeGenerator::EmitGeneratorResume(Expression *generator,
 
   // If we are sending a value and there is no operand stack, we can jump back
   // in directly.
-  if (resume_mode == JSGeneratorObject::SEND) {
+  if (resume_mode == JSGeneratorObject::NEXT) {
     Label slow_resume;
     __ cmpq(rdx, Immediate(0));
     __ j(not_zero, &slow_resume);