Avoid Unnecessary Smi Checks

src/hydrogen-instructions.cc

Index: src/hydrogen-instructions.cc
diff --git a/src/hydrogen-instructions.cc b/src/hydrogen-instructions.cc
index 170f5eda6c51d8eb60b137eb6f8c275b5d7d7a85..151014404c88bba9c0293605a6569fcbbb8314e3 100644
--- a/src/hydrogen-instructions.cc
+++ b/src/hydrogen-instructions.cc
@@ -3051,9 +3051,8 @@ HType HCheckFunction::CalculateInferredType() {
 }
 
 
-HType HCheckNonSmi::CalculateInferredType() {
-  // TODO(kasperl): Is there any way to signal that this isn't a smi?
-  return HType::Tagged();
+HType HCheckHeapObject::CalculateInferredType() {
+  return HType::NonPrimitive();
 }
 
 
@@ -3723,7 +3722,7 @@ void HSimulate::Verify() {
 }
 
 
-void HCheckNonSmi::Verify() {
+void HCheckHeapObject::Verify() {
   HInstruction::Verify();
   ASSERT(HasNoUses());
 }