Merged r18286, r18289, r18291, r18292, r18299, r18327 into 3.23 branch.

src/runtime.cc

Index: src/runtime.cc
diff --git a/src/runtime.cc b/src/runtime.cc
index 7dc96f201970eec90466b79f20fa2823271fe737..c909f34db17f9cbb687ace5eb1f165c764af2752 100644
--- a/src/runtime.cc
+++ b/src/runtime.cc
@@ -9646,6 +9646,16 @@ RUNTIME_FUNCTION(MaybeObject*, Runtime_GlobalReceiver) {
 }
 
 
+RUNTIME_FUNCTION(MaybeObject*, Runtime_IsAttachedGlobal) {
+  SealHandleScope shs(isolate);
+  ASSERT(args.length() == 1);
+  Object* global = args[0];
+  if (!global->IsJSGlobalObject()) return isolate->heap()->false_value();
+  return isolate->heap()->ToBoolean(
+      !JSGlobalObject::cast(global)->IsDetached());
+}
+
+
 RUNTIME_FUNCTION(MaybeObject*, Runtime_ParseJson) {
   HandleScope scope(isolate);
   ASSERT_EQ(1, args.length());