[serializer] small fixes for blink snapshot.

src/snapshot/partial-serializer.cc

Index: src/snapshot/partial-serializer.cc
diff --git a/src/snapshot/partial-serializer.cc b/src/snapshot/partial-serializer.cc
index bea476dcbb9c2ffb1c2d51041c8bcd145e5b114b..e89f44f6e2c717ec5bf6cf526c63386af5f85f86 100644
--- a/src/snapshot/partial-serializer.cc
+++ b/src/snapshot/partial-serializer.cc
@@ -118,6 +118,7 @@ bool PartialSerializer::ShouldBeInThePartialSnapshotCache(HeapObject* o) {
   DCHECK(!o->IsScript());
   return o->IsName() || o->IsSharedFunctionInfo() || o->IsHeapNumber() ||
          o->IsCode() || o->IsScopeInfo() || o->IsAccessorInfo() ||
+         o->IsTemplateInfo() ||
          o->map() ==
              startup_serializer_->isolate()->heap()->fixed_cow_array_map();
 }