[stubs] An easier way of defining a stub call interface descriptor.

src/x87/interface-descriptors-x87.cc

Index: src/x87/interface-descriptors-x87.cc
diff --git a/src/x87/interface-descriptors-x87.cc b/src/x87/interface-descriptors-x87.cc
index f735f375d1856859480a70da80dfedea9a582588..e47a3037201539bd8ddfda5a51bb3b57c6ad3e9a 100644
--- a/src/x87/interface-descriptors-x87.cc
+++ b/src/x87/interface-descriptors-x87.cc
@@ -11,6 +11,14 @@ namespace internal {
 
 const Register CallInterfaceDescriptor::ContextRegister() { return esi; }
 
+void CallInterfaceDescriptor::DefaultInitializePlatformSpecific(
+    CallInterfaceDescriptorData* data, int register_parameter_count) {
+  const Register default_stub_registers[] = {eax, ebx, ecx, edx, edi};
+  CHECK_LE(static_cast<size_t>(register_parameter_count),
+           arraysize(default_stub_registers));
+  data->InitializePlatformSpecific(register_parameter_count,
+                                   default_stub_registers);
+}
 
 const Register LoadDescriptor::ReceiverRegister() { return edx; }
 const Register LoadDescriptor::NameRegister() { return ecx; }
@@ -68,8 +76,6 @@ const Register MathPowIntegerDescriptor::exponent() {
 const Register GrowArrayElementsDescriptor::ObjectRegister() { return eax; }
 const Register GrowArrayElementsDescriptor::KeyRegister() { return ebx; }
 
-const Register HasPropertyDescriptor::ObjectRegister() { return eax; }
-const Register HasPropertyDescriptor::KeyRegister() { return ebx; }
 
 void FastNewClosureDescriptor::InitializePlatformSpecific(
     CallInterfaceDescriptorData* data) {