Test to cover value in single junction iteration

Covers the fix for rakudo/rakudo#3198.

S03-junctions/misc.t

@@ -3,7 +3,7 @@ use Test;
 use lib $?FILE.IO.parent(2).add: 'packages/Test-Helpers';
 use Test::Util;
 
-plan 149;
+plan 150;
 
 =begin pod
 
@@ -370,6 +370,13 @@ ok Mu & Mu ~~ Mu, 'Mu & Mu ~~ Mu works';
     is rt63686(), 'happiness', 'for loop over junction in sub';
 }
 
+# https://github.com/rakudo/rakudo/issues/3198
+{
+    my @seen;
+    @seen.push(.^name) for any 1;
+    is-deeply @seen, ['Junction'], 'for loop over Junction gets the Junction';
+}
+
 # https://github.com/Raku/old-issue-tracker/issues/1167
 # Error with stringifying .WHAT on any junctions
 {