Fix invalid casts from ComplexFeature to SimpleFeature.

tools/json_schema_compiler/test/features_generation_unittest.cc

Index: tools/json_schema_compiler/test/features_generation_unittest.cc
diff --git a/tools/json_schema_compiler/test/features_generation_unittest.cc b/tools/json_schema_compiler/test/features_generation_unittest.cc
index 3b7e8e13ab961a60012495a2849c85cd8bd73c76..79f763876e7f3af8d7d09522fb333ab3ae32fddd 100644
--- a/tools/json_schema_compiler/test/features_generation_unittest.cc
+++ b/tools/json_schema_compiler/test/features_generation_unittest.cc
@@ -287,12 +287,12 @@ TEST(FeaturesGenerationTest, FeaturesTest) {
     comparator.CompareFeature(feature);
   }
   {
-    Feature* feature = GetAPIFeature("complex_alias");
+    Feature* feature = provider.GetFeature("complex_alias");
     ASSERT_EQ("", feature->alias());
     ASSERT_EQ("complex_alias_source", feature->source());
   }
   {
-    Feature* feature = GetAPIFeature("complex_alias_source");
+    Feature* feature = provider.GetFeature("complex_alias_source");
     ASSERT_EQ("complex_alias", feature->alias());
     ASSERT_EQ("", feature->source());
   }