Provide call counts for constructor calls, surface them as a vector IC.

src/ic/ic.h

Index: src/ic/ic.h
diff --git a/src/ic/ic.h b/src/ic/ic.h
index 3abc4b6e4fe153cc661b3d62bd435fbe963f395f..3260c55b44c2f768a55568c6c483866a0c5caeb0 100644
--- a/src/ic/ic.h
+++ b/src/ic/ic.h
@@ -77,8 +77,8 @@ class IC {
 
   static bool ICUseVector(Code::Kind kind) {
     return kind == Code::LOAD_IC || kind == Code::KEYED_LOAD_IC ||
-           kind == Code::CALL_IC || kind == Code::STORE_IC ||
-           kind == Code::KEYED_STORE_IC;
+           kind == Code::CALL_IC || kind == Code::CONSTRUCT_IC ||
+           kind == Code::STORE_IC || kind == Code::KEYED_STORE_IC;
   }
 
  protected:
@@ -294,6 +294,17 @@ class CallIC : public IC {
 };
 
 
+class ConstructIC : public IC {
+ public:
+  ConstructIC(Isolate* isolate, ConstructICNexus* nexus)
+      : IC(EXTRA_CALL_FRAME, isolate, nexus) {
+    DCHECK(nexus != NULL);
+  }
+
+  static void Clear(Isolate* isolate, Code* host, ConstructICNexus* nexus);
+};
+
+
 class LoadIC : public IC {
  public:
   static ExtraICState ComputeExtraICState(TypeofMode typeof_mode,