HydrogenCodeStubs consume stack arguments via descriptor.

src/code-stubs.cc

Index: src/code-stubs.cc
diff --git a/src/code-stubs.cc b/src/code-stubs.cc
index 5d802bd7ac9bab6f3f072442d0139963bcdf952b..4e340b1609e3ae3fcc445d2240aac0381ae8262f 100644
--- a/src/code-stubs.cc
+++ b/src/code-stubs.cc
@@ -31,7 +31,6 @@ CodeStubDescriptor::CodeStubDescriptor(CodeStub* stub)
       hint_stack_parameter_count_(-1),
       function_mode_(NOT_JS_FUNCTION_STUB_MODE),
       deoptimization_handler_(NULL),
-      handler_arguments_mode_(DONT_PASS_ARGUMENTS),
       miss_handler_(),
       has_miss_handler_(false) {
   stub->InitializeDescriptor(this);
@@ -43,7 +42,6 @@ CodeStubDescriptor::CodeStubDescriptor(Isolate* isolate, uint32_t stub_key)
       hint_stack_parameter_count_(-1),
       function_mode_(NOT_JS_FUNCTION_STUB_MODE),
       deoptimization_handler_(NULL),
-      handler_arguments_mode_(DONT_PASS_ARGUMENTS),
       miss_handler_(),
       has_miss_handler_(false) {
   CodeStub::InitializeDescriptor(isolate, stub_key, this);
@@ -62,11 +60,9 @@ void CodeStubDescriptor::Initialize(Address deoptimization_handler,
 void CodeStubDescriptor::Initialize(Register stack_parameter_count,
                                     Address deoptimization_handler,
                                     int hint_stack_parameter_count,
-                                    StubFunctionMode function_mode,
-                                    HandlerArgumentsMode handler_mode) {
+                                    StubFunctionMode function_mode) {
   Initialize(deoptimization_handler, hint_stack_parameter_count, function_mode);
   stack_parameter_count_ = stack_parameter_count;
-  handler_arguments_mode_ = handler_mode;
 }