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

test/cctest/interpreter/test-bytecode-generator.cc

Index: test/cctest/interpreter/test-bytecode-generator.cc
diff --git a/test/cctest/interpreter/test-bytecode-generator.cc b/test/cctest/interpreter/test-bytecode-generator.cc
index 673766d698f1dffd07e5205c80555b2f088e27c4..21decd9eda7b9177a11a2e3cb85110850eabb818 100644
--- a/test/cctest/interpreter/test-bytecode-generator.cc
+++ b/test/cctest/interpreter/test-bytecode-generator.cc
@@ -3550,7 +3550,7 @@ TEST(CallNew) {
   Zone zone;
 
   FeedbackVectorSpec feedback_spec(&zone);
-  FeedbackVectorSlot slot1 = feedback_spec.AddGeneralSlot();
+  FeedbackVectorSlot slot1 = feedback_spec.AddConstructICSlot();
   FeedbackVectorSlot slot2 = feedback_spec.AddLoadICSlot();
   USE(slot1);