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

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 8652ffd6fb84ad1078d13f194d4785725b1e73e6..3e22e696b26b8601ef5e282ab36e9e0bf319a578 100644
--- a/src/mips/interface-descriptors-mips.cc
+++ b/src/mips/interface-descriptors-mips.cc
@@ -31,13 +31,9 @@ const Register LoadWithVectorDescriptor::VectorRegister() { return a3; }
 const Register StoreDescriptor::ReceiverRegister() { return a1; }
 const Register StoreDescriptor::NameRegister() { return a2; }
 const Register StoreDescriptor::ValueRegister() { return a0; }
+const Register StoreDescriptor::SlotRegister() { return t0; }
 
-
-const Register VectorStoreICTrampolineDescriptor::SlotRegister() { return t0; }
-
-
-const Register VectorStoreICDescriptor::VectorRegister() { return a3; }
-
+const Register StoreWithVectorDescriptor::VectorRegister() { return a3; }
 
 const Register VectorStoreTransitionDescriptor::SlotRegister() { return t0; }
 const Register VectorStoreTransitionDescriptor::VectorRegister() { return a3; }