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

src/mips64/lithium-codegen-mips64.cc

Index: src/mips64/lithium-codegen-mips64.cc
diff --git a/src/mips64/lithium-codegen-mips64.cc b/src/mips64/lithium-codegen-mips64.cc
index edc2d449b39f255fd3e40f9c50abceb5710cfe13..eccf09d2dd7fe6a2a7722500defd06a53f615433 100644
--- a/src/mips64/lithium-codegen-mips64.cc
+++ b/src/mips64/lithium-codegen-mips64.cc
@@ -2908,8 +2908,8 @@ void LCodeGen::DoReturn(LReturn* instr) {
 template <class T>
 void LCodeGen::EmitVectorLoadICRegisters(T* instr) {
   Register vector_register = ToRegister(instr->temp_vector());
-  Register slot_register = VectorLoadICDescriptor::SlotRegister();
-  DCHECK(vector_register.is(VectorLoadICDescriptor::VectorRegister()));
+  Register slot_register = LoadWithVectorDescriptor::SlotRegister();
+  DCHECK(vector_register.is(LoadWithVectorDescriptor::VectorRegister()));
   DCHECK(slot_register.is(a0));
 
   AllowDeferredHandleDereference vector_structure_check;