- Move the Timer interface to the dart:isolate library so that it

runtime/bin/builtin_nolib.cc

Index: runtime/bin/builtin_nolib.cc
===================================================================
--- runtime/bin/builtin_nolib.cc	(revision 8601)
+++ runtime/bin/builtin_nolib.cc	(working copy)
@@ -28,7 +28,13 @@
 
 
 void Builtin::SetupLibrary(Dart_Handle library, BuiltinLibraryId id) {
-  UNREACHABLE();
+  ASSERT((sizeof(builtin_libraries_) / sizeof(builtin_lib_props)) ==
+         kInvalidLibrary);
+  ASSERT(id >= kBuiltinLibrary && id < kInvalidLibrary);
+  if (builtin_libraries_[id].has_natives_) {
+    // Setup the native resolver for built in library functions.
+    DART_CHECK_VALID(Dart_SetNativeResolver(library, NativeLookup));
+  }
 }