Introduce POLYMORPHIC

src/objects.cc

Index: src/objects.cc
diff --git a/src/objects.cc b/src/objects.cc
index a97590ae69dccd09c35868ce7c3c6a1a632a7603..dc5ad717e5c336ef608bfe84fd1996be258e7a1e 100644
--- a/src/objects.cc
+++ b/src/objects.cc
@@ -9009,6 +9009,7 @@ const char* Code::ICState2String(InlineCacheState state) {
     case PREMONOMORPHIC: return "PREMONOMORPHIC";
     case MONOMORPHIC: return "MONOMORPHIC";
     case MONOMORPHIC_PROTOTYPE_FAILURE: return "MONOMORPHIC_PROTOTYPE_FAILURE";
+    case POLYMORPHIC: return "POLYMORPHIC";
     case MEGAMORPHIC: return "MEGAMORPHIC";
     case DEBUG_BREAK: return "DEBUG_BREAK";
     case DEBUG_PREPARE_STEP_IN: return "DEBUG_PREPARE_STEP_IN";