my $code= <<"__EOC";
    my \@x;                  <-- added
    for (1..3) {
    $_call_
        print "\\n\\t"; 
    for (1..3) {
        $_call_
        push \@x, 'x';       <-- added
    }
    print "\\n";
    }
__EOC

##</code><code>##

--- Array
    my @x;
    for (1..3) {
    pr [1,2];
        print "\n\t"; #UPDATE
    for (1..3) {
        pr [1,2];
        push @x, 'x';
    }
    print "\n";
    }
REF(0x18538d8)
        REF(0x18538c0)  REF(0x185389c)  REF(0x1853950)
REF(0x185389c)
        REF(0x1853914)  REF(0x1853920)  REF(0x18538a8)
REF(0x1853920)
        REF(0x1853884)  REF(0x1853890)  REF(0x185386c)