Use off-heap data for class check instructions

runtime/vm/il_printer.cc

Index: runtime/vm/il_printer.cc
diff --git a/runtime/vm/il_printer.cc b/runtime/vm/il_printer.cc
index fde3ffd26294535166b01b1d322ad1caa3c83d22..a98e5689918aab8fdebd203a3dcc8e2cf874f4f1 100644
--- a/runtime/vm/il_printer.cc
+++ b/runtime/vm/il_printer.cc
@@ -216,7 +216,8 @@ static void PrintTargetsHelper(BufferFormatter* f,
       const Class& cls =
           Class::Handle(Isolate::Current()->class_table()->At(range.cid_start));
       f->Print("%s", String::Handle(cls.Name()).ToCString());
-      f->Print(" cnt:%" Pd " trgt:'%s'", count, target.ToQualifiedCString());
+      f->Print(" cid %" Pd " cnt:%" Pd " trgt:'%s'", range.cid_start, count,
+               target.ToQualifiedCString());
     } else {
       const Class& cls = Class::Handle(range.target->Owner());
       f->Print("cid %" Pd "-%" Pd " %s", range.cid_start, range.cid_end,
@@ -1031,11 +1032,7 @@ void CheckClassIdInstr::PrintOperandsTo(BufferFormatter* f) const {
 
 void CheckClassInstr::PrintOperandsTo(BufferFormatter* f) const {
   value()->PrintTo(f);
-  if (FLAG_display_sorted_ic_data) {
-    PrintICDataSortedHelper(f, unary_checks());
-  } else {
-    PrintICDataHelper(f, unary_checks(), FlowGraphPrinter::kPrintAll);
-  }
+  PrintTargetsHelper(f, targets_, FlowGraphPrinter::kPrintAll);
   if (IsNullCheck()) {
     f->Print(" nullcheck");
   }