[turbofan] JSTypeFeedbackSpecializer is now an AdvancedReducer.

test/unittests/compiler/js-type-feedback-unittest.cc

Index: test/unittests/compiler/js-type-feedback-unittest.cc
diff --git a/test/unittests/compiler/js-type-feedback-unittest.cc b/test/unittests/compiler/js-type-feedback-unittest.cc
index 46eb437b8c488fca2dc4671d16f8dd3e02df0682..c243c5f088ea78197f658ce237774ecb2cfff670 100644
--- a/test/unittests/compiler/js-type-feedback-unittest.cc
+++ b/test/unittests/compiler/js-type-feedback-unittest.cc
@@ -41,8 +41,10 @@ class JSTypeFeedbackTest : public TypedGraphTest {
     MachineOperatorBuilder machine(zone());
     JSGraph jsgraph(isolate(), graph(), common(), javascript(), &machine);
     JSTypeFeedbackTable table(zone());
-    JSTypeFeedbackSpecializer reducer(&jsgraph, &table, nullptr, global_object,
-                                      &dependencies_);
+    // TODO(titzer): mock the GraphReducer here for better unit testing.
+    GraphReducer graph_reducer(graph(), zone());
+    JSTypeFeedbackSpecializer reducer(&graph_reducer, &jsgraph, &table, nullptr,
+                                      global_object, &dependencies_);
     return reducer.Reduce(node);
   }