AOT: Single target stub.

runtime/vm/raw_object_snapshot.cc

Index: runtime/vm/raw_object_snapshot.cc
diff --git a/runtime/vm/raw_object_snapshot.cc b/runtime/vm/raw_object_snapshot.cc
index d94ce4e2e4e509fe31340bced5b79bcc7e065f41..3fccda2d130da36636231eb27b5fcfae46f04bc0 100644
--- a/runtime/vm/raw_object_snapshot.cc
+++ b/runtime/vm/raw_object_snapshot.cc
@@ -1514,6 +1514,24 @@ void RawContextScope::WriteTo(SnapshotWriter* writer,
 }
 
 
+RawSingleTargetCache* SingleTargetCache::ReadFrom(SnapshotReader* reader,
+                                                  intptr_t object_id,
+                                                  intptr_t tags,
+                                                  Snapshot::Kind kind,
+                                                  bool as_reference) {
+  UNREACHABLE();
+  return SingleTargetCache::null();
+}
+
+
+void RawSingleTargetCache::WriteTo(SnapshotWriter* writer,
+                                   intptr_t object_id,
+                                   Snapshot::Kind kind,
+                                   bool as_reference) {
+  UNREACHABLE();
+}
+
+
 RawICData* ICData::ReadFrom(SnapshotReader* reader,
                             intptr_t object_id,
                             intptr_t tags,