Introduce AllocateInNewSpace stub.

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 36962351653e97b2929f94862f78399ae23b5a15..c394bfa1b90bf4cf86a72036f534a3b92ccbaa87 100644
--- a/src/x87/interface-descriptors-x87.cc
+++ b/src/x87/interface-descriptors-x87.cc
@@ -237,6 +237,13 @@ void AllocateHeapNumberDescriptor::InitializePlatformSpecific(
 }
 
 
+void AllocateInNewSpaceDescriptor::InitializePlatformSpecific(
+    CallInterfaceDescriptorData* data) {
+  Register registers[] = {eax};
+  data->InitializePlatformSpecific(arraysize(registers), registers);
+}
+
+
 void ArrayConstructorConstantArgCountDescriptor::InitializePlatformSpecific(
     CallInterfaceDescriptorData* data) {
   // register state