Revert of Rework CallApi*Stubs.

src/s390/interface-descriptors-s390.cc

 // Copyright 2015 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #if V8_TARGET_ARCH_S390
 
 #include "src/interface-descriptors.h"
 
 namespace v8 {
 namespace internal {
@@ skipping 316 matching lines @@
     CallInterfaceDescriptorData* data) {
   Register registers[] = {
       r3,  // JSFunction
       r5,  // the new target
       r2,  // actual number of arguments
       r4,  // expected number of arguments
   };
   data->InitializePlatformSpecific(arraysize(registers), registers);
 }
 
-void ApiCallbackDescriptorBase::InitializePlatformSpecific(
+void ApiFunctionDescriptor::InitializePlatformSpecific(
+    CallInterfaceDescriptorData* data) {
+  Register registers[] = {
+      r2,  // callee
+      r6,  // call_data
+      r4,  // holder
+      r3,  // api_function_address
+      r5,  // actual number of arguments
+  };
+  data->InitializePlatformSpecific(arraysize(registers), registers);
+}
+
+void ApiAccessorDescriptor::InitializePlatformSpecific(
     CallInterfaceDescriptorData* data) {
   Register registers[] = {
       r2,  // callee
       r6,  // call_data
       r4,  // holder
       r3,  // api_function_address
   };
   data->InitializePlatformSpecific(arraysize(registers), registers);
 }
 
@@ skipping 34 matching lines @@
       r4,  // address of first argument (argv)
       r3   // the runtime function to call
   };
   data->InitializePlatformSpecific(arraysize(registers), registers);
 }
 
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_TARGET_ARCH_S390