[ sub { return stat $0 }, 13 ],
[ sub { return caller 0 }, sub { my @a = caller 0; scalar @a }->() ],
[ sub { return localtime }, do { my @a = localtime; scalar @a } ],
[ sub { return stat $0 }, 13 ],
[ sub { return caller 0 }, sub { my @a = caller 0; scalar @a }->() ],
[ sub { return localtime }, do { my @a = localtime; scalar @a } ],