Add missing test from previous CL.

pkg/front_end/test/fasta/type_variable_as_super.dart.dartk.expect

Index: pkg/front_end/test/fasta/type_variable_as_super.dart.dartk.expect
diff --git a/pkg/front_end/test/fasta/type_variable_as_super.dart.dartk.expect b/pkg/front_end/test/fasta/type_variable_as_super.dart.dartk.expect
new file mode 100644
index 0000000000000000000000000000000000000000..f896d53309187929cd7e0c3902c2dd8e6b34e56d
--- /dev/null
+++ b/pkg/front_end/test/fasta/type_variable_as_super.dart.dartk.expect
@@ -0,0 +1,24 @@
+library;
+import self as self;
+import "dart:core" as core;
+
+abstract class A<T extends core::Object> extends core::Object {
+  constructor •() → void
+    : super core::Object::•()
+    ;
+}
+abstract class B<T extends core::Object> extends core::Object {
+  constructor •() → void
+    : super core::Object::•()
+    ;
+}
+class C<T extends core::Object> extends core::Object {
+  constructor •() → void
+    : super core::Object::•()
+    ;
+}
+static method main() → dynamic {
+  throw new core::NoSuchMethodError::•(null, #A, <dynamic>[], <dynamic, dynamic>{}, null);
+  throw new core::NoSuchMethodError::•(null, #B, <dynamic>[], <dynamic, dynamic>{}, null);
+  new self::C::•<dynamic>();
+}