Test Bool:D as literals in signatures warn

RT#130182: https://rt.perl.org/Ticket/Display.html?id=130182
Rakudo fix: rakudo/rakudo@b01dfcda90

Author: zoffixznet

S06-signature/types.t

@@ -1,7 +1,9 @@
 use v6;
+use lib <t/spec/packages>;
 use Test;
+use Test::Util;
 
-plan 15;
+plan 18;
 
 sub f($x) returns Int { return $x };
 
@@ -135,4 +137,14 @@ subtest 'numeric literals as type constraints' => {
     }
 }
 
+# RT#130182
+{
+    is_run ｢-> True  { }($)｣, {:err(/'smartmatch'/), :out('')},
+        '`True` signature literal warns';
+    is_run ｢-> False { }($)｣, {:err(/'smartmatch'/), :out('')},
+        '`False` signature literal warns';
+    is_run ｢-> Bool  { print "ok" }(True)｣, {:err(''), :out('ok')},
+        '`Bool` type constraint does not warn';
+}
+
 # vim: ft=perl6