Cleanup interface descriptors to reflect that vectors are part of loads.

src/ia32/interface-descriptors-ia32.cc

Index: src/ia32/interface-descriptors-ia32.cc
diff --git a/src/ia32/interface-descriptors-ia32.cc b/src/ia32/interface-descriptors-ia32.cc
index b7c71ca2867da52559c56a4822259b798aa1d191..81a0682baeb0359d7e4f826d94067ff014ff4d91 100644
--- a/src/ia32/interface-descriptors-ia32.cc
+++ b/src/ia32/interface-descriptors-ia32.cc
@@ -16,12 +16,9 @@ const Register CallInterfaceDescriptor::ContextRegister() { return esi; }
 
 const Register LoadDescriptor::ReceiverRegister() { return edx; }
 const Register LoadDescriptor::NameRegister() { return ecx; }
+const Register LoadDescriptor::SlotRegister() { return eax; }
 
-
-const Register VectorLoadICTrampolineDescriptor::SlotRegister() { return eax; }
-
-
-const Register VectorLoadICDescriptor::VectorRegister() { return ebx; }
+const Register LoadWithVectorDescriptor::VectorRegister() { return ebx; }
 
 
 const Register StoreDescriptor::ReceiverRegister() { return edx; }