Revert "Reland "Use off-heap data for type feedback in PolymorphicInstanceCallInstr""

runtime/vm/object.cc

Index: runtime/vm/object.cc
diff --git a/runtime/vm/object.cc b/runtime/vm/object.cc
index ff790974353a1eb7902cfe48cf4fc2e173e80c4e..08821a27c542653e4afa6d19076ed8b2754b7551 100644
--- a/runtime/vm/object.cc
+++ b/runtime/vm/object.cc
@@ -13882,6 +13882,19 @@ bool ICData::HasOneTarget() const {
 }
 
 
+bool ICData::HasOnlyDispatcherOrImplicitAccessorTargets() const {
+  const intptr_t len = NumberOfChecks();
+  Function& target = Function::Handle();
+  for (intptr_t i = 0; i < len; i++) {
+    target = GetTargetAt(i);
+    if (!target.IsDispatcherOrImplicitAccessor()) {
+      return false;
+    }
+  }
+  return true;
+}
+
+
 void ICData::GetUsedCidsForTwoArgs(GrowableArray<intptr_t>* first,
                                    GrowableArray<intptr_t>* second) const {
   ASSERT(NumArgsTested() == 2);