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

src/code-stubs.h

Index: src/code-stubs.h
diff --git a/src/code-stubs.h b/src/code-stubs.h
index 8bf470115d1d79b4d1fadac2a5c3eff39ad7551a..fb22e49213542778547858b0acc50a64be0a43dc 100644
--- a/src/code-stubs.h
+++ b/src/code-stubs.h
@@ -26,8 +26,8 @@ namespace internal {
   V(CallApiFunction)                        \
   V(CallApiAccessor)                        \
   V(CallApiGetter)                          \
-  V(CallConstruct)                          \
   V(CallIC)                                 \
+  V(ConstructIC)                            \
   V(CEntry)                                 \
   V(CompareIC)                              \
   V(DoubleToI)                              \
@@ -1962,13 +1962,16 @@ class RegExpConstructResultStub final : public HydrogenCodeStub {
 };
 
 
-// TODO(bmeurer/mvstanton): Turn CallConstructStub into ConstructICStub.
-class CallConstructStub final : public PlatformCodeStub {
+class ConstructICStub final : public PlatformCodeStub {
  public:
-  explicit CallConstructStub(Isolate* isolate) : PlatformCodeStub(isolate) {}
+  explicit ConstructICStub(Isolate* isolate) : PlatformCodeStub(isolate) {}
 
-  DEFINE_CALL_INTERFACE_DESCRIPTOR(CallConstruct);
-  DEFINE_PLATFORM_CODE_STUB(CallConstruct, PlatformCodeStub);
+  Code::Kind GetCodeKind() const override { return Code::CONSTRUCT_IC; }
+
+  InlineCacheState GetICState() const final { return GENERIC; }
+
+  DEFINE_CALL_INTERFACE_DESCRIPTOR(Construct);
+  DEFINE_PLATFORM_CODE_STUB(ConstructIC, PlatformCodeStub);
 };