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

runtime/vm/assembler_arm.cc

Index: runtime/vm/assembler_arm.cc
diff --git a/runtime/vm/assembler_arm.cc b/runtime/vm/assembler_arm.cc
index 71a960831e0aff959f3d0d7829966d4a7599e2c9..b8fc18e8ac65ba3ea667ef78cfc3976dde37025c 100644
--- a/runtime/vm/assembler_arm.cc
+++ b/runtime/vm/assembler_arm.cc
@@ -1619,6 +1619,16 @@ void Assembler::LoadExternalLabel(Register rd,
 }
 
 
+void Assembler::LoadNativeEntry(Register rd,
+                                const ExternalLabel* label,
+                                Patchability patchable,
+                                Condition cond) {
+  const int32_t offset = ObjectPool::element_offset(
+      object_pool_wrapper_.FindNativeEntry(label, patchable));
+  LoadWordFromPoolOffset(rd, offset - kHeapObjectTag, cond);
+}
+
+
 void Assembler::PushObject(const Object& object) {
   LoadObject(IP, object);
   Push(IP);