Wire up the stub native resolver for all libraries in gen_snapshot

runtime/include/dart_api.h

Index: runtime/include/dart_api.h
diff --git a/runtime/include/dart_api.h b/runtime/include/dart_api.h
index a085a724bf47fe05981d292b3f56300031dd09c4..84b3afadf913e7a2b40e490b11ebb6da22115f88 100644
--- a/runtime/include/dart_api.h
+++ b/runtime/include/dart_api.h
@@ -2703,6 +2703,30 @@ Dart_SetNativeResolver(Dart_Handle library,
 /* TODO(turnidge): Rename to Dart_LibrarySetNativeResolver? */
 
 
+/**
+ * Returns the callback used to resolve native functions for a library.
+ *
+ * \param library A library.
+ * \param resolver a pointer to a Dart_NativeEntryResolver
+ *
+ * \return A valid handle if the library was found.
+ */
+DART_EXPORT Dart_Handle
+Dart_GetNativeResolver(Dart_Handle library, Dart_NativeEntryResolver* resolver);
+
+
+/**
+ * Returns the callback used to resolve native function symbols for a library.
+ *
+ * \param library A library.
+ * \param resolver a pointer to a Dart_NativeEntrySymbol.
+ *
+ * \return A valid handle if the library was found.
+ */
+DART_EXPORT Dart_Handle Dart_GetNativeSymbol(Dart_Handle library,
+                                             Dart_NativeEntrySymbol* resolver);
+
+
 /*
  * =====================
  * Scripts and Libraries