Track which entries in the ObjectPool are native entries, and reset them when loading a precompiled…

runtime/vm/assembler_arm.h

Index: runtime/vm/assembler_arm.h
diff --git a/runtime/vm/assembler_arm.h b/runtime/vm/assembler_arm.h
index 79dbea8b317ceb52fdb97ff9f4474bb3d36895dc..4a5baabd21ab92fe5826869c299a88d05087a55c 100644
--- a/runtime/vm/assembler_arm.h
+++ b/runtime/vm/assembler_arm.h
@@ -671,6 +671,10 @@ class Assembler : public ValueObject {
                          const ExternalLabel* label,
                          Patchability patchable,
                          Condition cond = AL);
+  void LoadNativeEntry(Register dst,
+                       const ExternalLabel* label,
+                       Patchability patchable,
+                       Condition cond = AL);
   void PushObject(const Object& object);
   void CompareObject(Register rn, const Object& object);