Initial isolate reload support

runtime/vm/object_service.cc

Index: runtime/vm/object_service.cc
diff --git a/runtime/vm/object_service.cc b/runtime/vm/object_service.cc
index 41290fb7e8bde3432be7f9b30fa0c735583c4b19..1a861a370519b5b39766f6c7ff0474fee78656ba 100644
--- a/runtime/vm/object_service.cc
+++ b/runtime/vm/object_service.cc
@@ -430,18 +430,19 @@ void Script::PrintJSONImpl(JSONStream* stream, bool ref) const {
   const String& encoded_uri = String::Handle(String::EncodeIRI(uri));
   ASSERT(!encoded_uri.IsNull());
   const Library& lib = Library::Handle(FindLibrary());
-  if (kind() == RawScript::kEvaluateTag) {
+  if (lib.IsNull()) {
     jsobj.AddServiceId(*this);
   } else {
-    ASSERT(!lib.IsNull());
-    jsobj.AddFixedServiceId("libraries/%" Pd "/scripts/%s",
-        lib.index(), encoded_uri.ToCString());
+    jsobj.AddFixedServiceId("libraries/%" Pd "/scripts/%s/%" Px64 "",
+                            lib.index(), encoded_uri.ToCString(),
+                            load_timestamp());
   }
   jsobj.AddPropertyStr("uri", uri);
   jsobj.AddProperty("_kind", GetKindAsCString());
   if (ref) {
     return;
   }
+  jsobj.AddPropertyTimeMillis("_loadTime", load_timestamp());
   if (!lib.IsNull()) {
     jsobj.AddProperty("library", lib);
   }