infix:<eqv> is supposed to take Any, Any.

lib/CORE.setting

@@ -3204,7 +3204,7 @@ sub infix:<cmp> is equiv<leg> (Mu $a, Mu $b) {
     return $a.key cmp $b.key || $a.value cmp $b.value if $a ~~ Pair;
     return $a <=> $b;
 }
-sub infix:<eqv> is equiv<==> (Mu $a, Mu $b) { ($a cmp $b) == 0 }
+sub infix:<eqv> is equiv<==> (Any $a, Any $b) { ($a cmp $b) == 0 }
 sub infix:<before> ($a, $b) is equiv<==> { ($a cmp $b) < 0 }
 sub infix:<after> ($a, $b) is equiv<==> { ($a cmp $b) > 0 }
 sub seqop($op, \x, \y) { $op(x,y) } # TODO: Special case with hyper