=== 9. Flags ===
flags: .read | .write
has-read: yes
flags-neg: no-read
flags-single: .execute
flags-all: .read | .write | .execute
flags-raw: 3
flags-explicit: .vsync | .resizable
flags-explicit-raw: 68
--- swap ---
var swap: 20 10
arr swap: 3 1
3-way: 3 1 2
--- destructure ---
basic: 10 20
fn: 2 1
discard: 200
triple: 1 2 3