[MIPS64] Fix tagged vs. untagged SMI comparison in Apply builtin.

src/builtins/mips64/builtins-mips64.cc

Index: src/builtins/mips64/builtins-mips64.cc
diff --git a/src/builtins/mips64/builtins-mips64.cc b/src/builtins/mips64/builtins-mips64.cc
index feb9b97e9ac2f45d5e9f17d80281a1bf5737dc37..4d15bfeeb96a2b39d352f80827fc515825abd556 100644
--- a/src/builtins/mips64/builtins-mips64.cc
+++ b/src/builtins/mips64/builtins-mips64.cc
@@ -2194,7 +2194,7 @@ void Builtins::Generate_Apply(MacroAssembler* masm) {
                                 Context::INITIAL_ARRAY_PROTOTYPE_INDEX));
     __ Branch(&create_runtime, ne, a2, Operand(at));
     __ LoadRoot(at, Heap::kArrayProtectorRootIndex);
-    __ lw(a2, UntagSmiFieldMemOperand(at, PropertyCell::kValueOffset));
+    __ lw(a2, FieldMemOperand(at, PropertyCell::kValueOffset));
     __ Branch(&create_runtime, ne, a2,
               Operand(Smi::FromInt(Isolate::kProtectorValid)));
     __ lw(a2, UntagSmiFieldMemOperand(a0, JSArray::kLengthOffset));