Avoid Unnecessary Smi Checks

src/ia32/lithium-ia32.h

Index: src/ia32/lithium-ia32.h
diff --git a/src/ia32/lithium-ia32.h b/src/ia32/lithium-ia32.h
index 212a49683cdad727da05da04146c00228301f5ee..59c6c817c984543637ac015f582ca5e7fa0c8887 100644
--- a/src/ia32/lithium-ia32.h
+++ b/src/ia32/lithium-ia32.h
@@ -895,6 +895,7 @@ class LIsStringAndBranch: public LControlInstruction<1, 1> {
   LOperand* temp() { return temps_[0]; }
 
   DECLARE_CONCRETE_INSTRUCTION(IsStringAndBranch, "is-string-and-branch")
+  DECLARE_HYDROGEN_ACCESSOR(IsStringAndBranch)
 
   virtual void PrintDataTo(StringStream* stream);
 };
@@ -927,6 +928,7 @@ class LIsUndetectableAndBranch: public LControlInstruction<1, 1> {
 
   DECLARE_CONCRETE_INSTRUCTION(IsUndetectableAndBranch,
                                "is-undetectable-and-branch")
+  DECLARE_HYDROGEN_ACCESSOR(IsUndetectableAndBranch)
 
   virtual void PrintDataTo(StringStream* stream);
 };
@@ -2570,6 +2572,7 @@ class LCheckNonSmi: public LTemplateInstruction<0, 1, 0> {
   LOperand* value() { return inputs_[0]; }
 
   DECLARE_CONCRETE_INSTRUCTION(CheckNonSmi, "check-non-smi")
+  DECLARE_HYDROGEN_ACCESSOR(CheckHeapObject)
 };