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

src/arm/interface-descriptors-arm.cc

Index: src/arm/interface-descriptors-arm.cc
diff --git a/src/arm/interface-descriptors-arm.cc b/src/arm/interface-descriptors-arm.cc
index 1e06d8c307819533459cc2990bb793a186049b3c..fbc137ced917f3428bbb5bcc815d6f0c05c82693 100644
--- a/src/arm/interface-descriptors-arm.cc
+++ b/src/arm/interface-descriptors-arm.cc
@@ -190,16 +190,15 @@ void CallFunctionWithFeedbackAndVectorDescriptor::InitializePlatformSpecific(
 }
 
 
-void CallConstructDescriptor::InitializePlatformSpecific(
+void ConstructDescriptor::InitializePlatformSpecific(
     CallInterfaceDescriptorData* data) {
   // r0 : number of arguments
   // r1 : the function to call
   // r2 : feedback vector
   // r3 : slot in feedback vector (Smi, for RecordCallTarget)
-  // r4 : new target (for IsSuperConstructorCall)
   // TODO(turbofan): So far we don't gather type feedback and hence skip the
   // slot parameter, but ArrayConstructStub needs the vector to be undefined.
-  Register registers[] = {r0, r1, r4, r2};
+  Register registers[] = {r0, r1, r2, r3};
   data->InitializePlatformSpecific(arraysize(registers), registers);
 }