Improve polymorphic loads on single slots.

src/mips/lithium-codegen-mips.cc

Index: src/mips/lithium-codegen-mips.cc
diff --git a/src/mips/lithium-codegen-mips.cc b/src/mips/lithium-codegen-mips.cc
index c8d37b6ecea86adcd67374c2074c2dd408c269a4..b999989a4760c0a07741cb662998d28d4da01635 100644
--- a/src/mips/lithium-codegen-mips.cc
+++ b/src/mips/lithium-codegen-mips.cc
@@ -4141,7 +4141,7 @@ void LCodeGen::DoCheckMapCommon(Register reg,
 }
 
 
-void LCodeGen::DoCheckMap(LCheckMap* instr) {
+void LCodeGen::DoCheckMaps(LCheckMaps* instr) {
   Register scratch = scratch0();
   LOperand* input = instr->InputAt(0);
   ASSERT(input->IsRegister());