[turbofan] Generalize AllocateStub to allow old space allocation.

src/mips/interface-descriptors-mips.cc

Index: src/mips/interface-descriptors-mips.cc
diff --git a/src/mips/interface-descriptors-mips.cc b/src/mips/interface-descriptors-mips.cc
index 940c9b9a7d9500923bcc884e88b32c3f1530356d..7ab2445744cf3ee1b98adfd3b7fbb26a10abdf3d 100644
--- a/src/mips/interface-descriptors-mips.cc
+++ b/src/mips/interface-descriptors-mips.cc
@@ -247,7 +247,7 @@ void AllocateHeapNumberDescriptor::InitializePlatformSpecific(
 SIMD128_TYPES(SIMD128_ALLOC_DESC)
 #undef SIMD128_ALLOC_DESC
 
-void AllocateInNewSpaceDescriptor::InitializePlatformSpecific(
+void AllocateDescriptor::InitializePlatformSpecific(
     CallInterfaceDescriptorData* data) {
   Register registers[] = {a0};
   data->InitializePlatformSpecific(arraysize(registers), registers);