Set the loaded_ flag in RawLibrary when it is completely loaded. This

vm/object.cc

Index: vm/object.cc
===================================================================
--- vm/object.cc	(revision 1553)
+++ vm/object.cc	(working copy)
@@ -3671,12 +3671,19 @@
 
 void Library::SetName(const String& name) const {
   // Only set name once.
-  ASSERT(raw_ptr()->name_ == raw_ptr()->url_);
+  ASSERT(!loaded());
   ASSERT(name.IsSymbol());
   StorePointer(&raw_ptr()->name_, name.raw());
 }
 
 
+void Library::SetLoaded() const {
+  // Should not be already loaded.
+  ASSERT(!loaded());
+  raw_ptr()->loaded_ = true;
+}
+
+
 void Library::GrowDictionary(const Array& dict, intptr_t dict_size) const {
   // TODO(iposva): Avoid exponential growth.
   intptr_t new_dict_size = dict_size * 2;