dart2js: store typeVariableReader stubs in the model.

pkg/compiler/lib/src/js_emitter/new_emitter/model_emitter.dart

Index: pkg/compiler/lib/src/js_emitter/new_emitter/model_emitter.dart
diff --git a/pkg/compiler/lib/src/js_emitter/new_emitter/model_emitter.dart b/pkg/compiler/lib/src/js_emitter/new_emitter/model_emitter.dart
index 5a90b0bbe7f8b2c5902fd25855a86116ba55ac24..1500a2dc6de2c37a86140f0d35483361ac57e009 100644
--- a/pkg/compiler/lib/src/js_emitter/new_emitter/model_emitter.dart
+++ b/pkg/compiler/lib/src/js_emitter/new_emitter/model_emitter.dart
@@ -486,11 +486,12 @@ class ModelEmitter {
     Iterable<Method> methods = cls.methods;
     Iterable<Method> isChecks = cls.isChecks;
     Iterable<Method> callStubs = cls.callStubs;
+    Iterable<Method> typeVariableReaderStubs = cls.typeVariableReaderStubs;
     Iterable<Method> noSuchMethodStubs = cls.noSuchMethodStubs;
     Iterable<Method> gettersSetters = _generateGettersSetters(cls);
     Iterable<Method> allMethods =
-        [methods, isChecks, callStubs, noSuchMethodStubs, gettersSetters]
-            .expand((x) => x);
+        [methods, isChecks, callStubs, typeVariableReaderStubs,
+         noSuchMethodStubs, gettersSetters].expand((x) => x);
     elements.addAll(allMethods.expand(emitInstanceMethod));
 
     return unparse(compiler, new js.ArrayInitializer(elements));