Test we don't curry HyperWhatever:Us

RT#128880:  https://rt.perl.org/Ticket/Display.html?id=128880
R#1489:     rakudo/rakudo#1489
Rakudo fix: rakudo/rakudo@57a1aa7a87

S02-types/hyperwhatever.t

@@ -0,0 +1,24 @@
+use v6;
+use Test;
+
+# Tests for the HyperWhatever type and its curries
+
+plan 2;
+
+# RT#128880
+throws-like ｢HyperWhatever.new｣, X::Cannot::New,
+    '.new throws that it cannot be called';
+
+# https://github.com/rakudo/rakudo/issues/1489
+subtest 'smartmatch with HyperWhatever type object' => {
+    plan 6;
+    is-deeply (HyperWhatever ~~ HyperWhatever),   True,  'HW (true)';
+    is-deeply (42            ~~ HyperWhatever),   False, 'HW (false)';
+    is-deeply (HyperWhatever ~~ HyperWhatever:U), True,  'HW:U (true)';
+    is-deeply ('meows'       ~~ HyperWhatever:U), False, 'HW:U (false)';
+    is-deeply (((**))        ~~ HyperWhatever:D), True,  'HW:D (true)';
+    is-deeply (((*))         ~~ HyperWhatever:D), False, 'HW:D (false)';
+}
+
+
+# vim: ft=perl6