Hydrogen: Re-use regular comparisons infrastructure for switch statements

src/code-stubs.h

Index: src/code-stubs.h
diff --git a/src/code-stubs.h b/src/code-stubs.h
index 55ebe219fdf8c80ba91c52cced2e0aab4a1b09b4..cdccb5e39db4e20b7f0a2f4f63dce710ff0537c8 100644
--- a/src/code-stubs.h
+++ b/src/code-stubs.h
@@ -1176,10 +1176,6 @@ class ICCompareStub: public PlatformCodeStub {
                              CompareIC::State* handler_state,
                              Token::Value* op);
 
-  static CompareIC::State CompareState(int minor_key) {
-    return static_cast<CompareIC::State>(HandlerStateField::decode(minor_key));
-  }
-
   virtual InlineCacheState GetICState();
 
  private: