[object] Add Script::IsUserJavaScript().

src/api.cc

Index: src/api.cc
diff --git a/src/api.cc b/src/api.cc
index 810da61060516ac21150788c9c81cf8648acb974..30d4fcc28c8e3d47fae941b55f6a3ad949afb8eb 100644
--- a/src/api.cc
+++ b/src/api.cc
@@ -9406,7 +9406,7 @@ void debug::GetLoadedScripts(v8::Isolate* v8_isolate,
     i::Script::Iterator iterator(isolate);
     i::Script* script;
     while ((script = iterator.Next())) {
-      if (script->type() != i::Script::TYPE_NORMAL) continue;
+      if (!script->IsUserJavaScript()) continue;
       if (script->HasValidSource()) {
         i::HandleScope handle_scope(isolate);
         i::Handle<i::Script> script_handle(script, isolate);