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

src/ast/ast.h

Index: src/ast/ast.h
diff --git a/src/ast/ast.h b/src/ast/ast.h
index e1adae9f249ce7af7da9142e7761dd141229acc7..1c053ddf076ac166903b3e4d7ec2fa8dbef43ab2 100644
--- a/src/ast/ast.h
+++ b/src/ast/ast.h
@@ -1968,7 +1968,7 @@ class CallNew final : public Expression {
   // Type feedback information.
   void AssignFeedbackVectorSlots(Isolate* isolate, FeedbackVectorSpec* spec,
                                  FeedbackVectorSlotCache* cache) override {
-    callnew_feedback_slot_ = spec->AddGeneralSlot();
+    callnew_feedback_slot_ = spec->AddConstructICSlot();
   }
 
   FeedbackVectorSlot CallNewFeedbackSlot() {
@@ -1983,7 +1983,6 @@ class CallNew final : public Expression {
   }
 
   static int num_ids() { return parent_num_ids() + 1; }
-  static int feedback_slots() { return 1; }
   BailoutId ReturnId() const { return BailoutId(local_id(0)); }
 
   void set_allocation_site(Handle<AllocationSite> site) {