Print static types of conditional expressions.

pkg/front_end/testcases/override.dart.strong.expect

Index: pkg/front_end/testcases/override.dart.strong.expect
diff --git a/pkg/front_end/testcases/override.dart.strong.expect b/pkg/front_end/testcases/override.dart.strong.expect
index 1f28522580c86050d9493e74f54be83c1bb2c6d6..8cdaa4c9236bc214447329d0968b54c1803727c3 100644
--- a/pkg/front_end/testcases/override.dart.strong.expect
+++ b/pkg/front_end/testcases/override.dart.strong.expect
@@ -29,7 +29,7 @@ class Sub extends self::Base {
   }
 }
 static method main(core::List<core::String> args) → dynamic {
-  self::Base object = args.{core::List::length}.{core::num::==}(0) ? new self::Base::•() : new self::Sub::•();
+  self::Base object = args.{core::List::length}.{core::num::==}(0) ?{self::Base} new self::Base::•() : new self::Sub::•();
   self::Foo a = object.{self::Base::method}();
   core::print(a);
 }