Olivine should infer item type from constants

[Mad Martian]

The following example doesn't work:

const $weapon = item &diamond_pickaxe with {
    name → "Magic Pickaxe"

    description →
        "I hit you with my pickaxe\n" ::
        "Only pickaxe I'll ever have fer me luv!"
    modifiers → {
        health → { operator → boost; amount → 5 }
        stability → { operator → boost; amount → 2.3 }
    }
    enchantments → [
        { type → sharpness; level → 5 }
        { type → knockback; level → 2 }
        { type → unbreaking; level → 5 }
    ]
}

It works if you declare $weapon as an item

[Mad Martian]

Fixed in 8.10.6-Blackberry