Revert of [runtime] Turn ArgumentAccessStub into FastNewSloppyArgumentsStub.

src/x64/interface-descriptors-x64.cc

Index: src/x64/interface-descriptors-x64.cc
diff --git a/src/x64/interface-descriptors-x64.cc b/src/x64/interface-descriptors-x64.cc
index 3f8cc97f81ddb7c3310874e1e7c3325cbc6b197a..d1903061430f153bd6bda473355402c814096d98 100644
--- a/src/x64/interface-descriptors-x64.cc
+++ b/src/x64/interface-descriptors-x64.cc
@@ -54,6 +54,11 @@
 const Register StringCompareDescriptor::RightRegister() { return rax; }
 
 
+const Register ArgumentsAccessNewDescriptor::function() { return rdi; }
+const Register ArgumentsAccessNewDescriptor::parameter_count() { return rcx; }
+const Register ArgumentsAccessNewDescriptor::parameter_pointer() { return rdx; }
+
+
 const Register ApiGetterDescriptor::function_address() { return r8; }
 
 
@@ -84,12 +89,6 @@
 
 
 void FastNewRestParameterDescriptor::InitializePlatformSpecific(
-    CallInterfaceDescriptorData* data) {
-  Register registers[] = {rdi};
-  data->InitializePlatformSpecific(arraysize(registers), registers);
-}
-
-void FastNewSloppyArgumentsDescriptor::InitializePlatformSpecific(
     CallInterfaceDescriptorData* data) {
   Register registers[] = {rdi};
   data->InitializePlatformSpecific(arraysize(registers), registers);