Test quote lang cache does not break our ops

RT#132262: https://rt.perl.org/Ticket/Display.html?id=132262
Rakudo fix: rakudo/rakudo@ad16c6fb86

S13-overloading/operators.t

@@ -1,7 +1,9 @@
 use v6;
+use lib <t/spec/packages/>;
 use Test;
+use Test::Util;
 
-plan 6;
+plan 7;
 
 #L<S06/Operator overloading>
 
@@ -50,4 +52,9 @@ plan 6;
     is B.new(x => 'a').('b'), 'ab', 'can overload invoke';
 }
 
+# RT #132262
+is_run ｢$ = ""; sub postfix:<♥> ($) { "pass" }; print "{ 5♥ }"｣,
+    {:out<pass>, :err(''), :0status},
+'quote lang cache does not interfere with newly defined ops';
+
 # vim: ft=perl6