Don't include ICData::owner_ in precompiled snapshots.

runtime/vm/raw_object.h

Index: runtime/vm/raw_object.h
diff --git a/runtime/vm/raw_object.h b/runtime/vm/raw_object.h
index 9f394f990715781e5fa70f96a3ce0df52f45a4fb..a262edff2c4f773a7633dcc2d66fc633927bc13e 100644
--- a/runtime/vm/raw_object.h
+++ b/runtime/vm/raw_object.h
@@ -1437,14 +1437,17 @@ class RawICData : public RawObject {
   RAW_HEAP_OBJECT_IMPLEMENTATION(ICData);
 
   RawObject** from() {
-    return reinterpret_cast<RawObject**>(&ptr()->owner_);
+    return reinterpret_cast<RawObject**>(&ptr()->ic_data_);
   }
-  RawObject* owner_;  // Parent/calling function or original IC of cloned IC.
+  RawArray* ic_data_;  // Contains class-ids, target and count.
   RawString* target_name_;  // Name of target function.
   RawArray* args_descriptor_;  // Arguments descriptor.
-  RawArray* ic_data_;  // Contains class-ids, target and count.
+  RawObject** to_precompiled_snapshot() {
+    return reinterpret_cast<RawObject**>(&ptr()->args_descriptor_);
+  }
+  RawObject* owner_;  // Parent/calling function or original IC of cloned IC.
   RawObject** to() {
-    return reinterpret_cast<RawObject**>(&ptr()->ic_data_);
+    return reinterpret_cast<RawObject**>(&ptr()->owner_);
   }
   int32_t deopt_id_;     // Deoptimization id corresponding to this IC.
   uint32_t state_bits_;  // Number of arguments tested in IC, deopt reasons,