Make the universe parts into small libraries.

pkg/compiler/lib/src/js_emitter/full_emitter/class_emitter.dart

Index: pkg/compiler/lib/src/js_emitter/full_emitter/class_emitter.dart
diff --git a/pkg/compiler/lib/src/js_emitter/full_emitter/class_emitter.dart b/pkg/compiler/lib/src/js_emitter/full_emitter/class_emitter.dart
index b6b04b8c54f5aa9c62ac20129e7d03d3de4b246d..c5723ae8d5095b323a8a2dc194add7026d88e52e 100644
--- a/pkg/compiler/lib/src/js_emitter/full_emitter/class_emitter.dart
+++ b/pkg/compiler/lib/src/js_emitter/full_emitter/class_emitter.dart
@@ -49,7 +49,7 @@ class ClassEmitter extends CodeEmitterHelper {
       // We add a special getter here to allow for tearing off a closure from
       // itself.
       jsAst.Fun function = js('function() { return this; }');
-      jsAst.Name name = namer.getterForMember(Selector.CALL_NAME);
+      jsAst.Name name = namer.getterForMember(Names.call);
       builder.addProperty(name, function);
     }