Feature Proposal: Constant variables.
This code:
```lua
x = 5 -- constant

function draw_stuff()
    print("constant variable: " .. x)
    rectfill(x, x, x + 10, x + 10, 12)
end
```
would get replaced with:
```lua
function draw_stuff()
    print("constant variable: " .. 5)
    rectfill(5, 5, 5 + 10, 5 + 10, 12)
end
```
or even:
```lua
function draw_stuff()
    print("constant varaible: 5")
    rectfill(5, 5, 15, 15, 12)
end
```


The above example could be a really nice feature for big games (which I guess shrinko8 is made for).