Tact Kitchen: “⚡️ Added destructuring statements It's a concise way to unpack Structs…”

⚡️ Added destructuring statements

It's a concise way to unpack Structs and Messages into distinct variables, which mirrors the instantiation syntax:

// Definition of Example
struct Example { number: Int }

fun basic() {
    // Basic syntax of destructuring assignment
    // is shown on the left of "=":
    let Example { number } =
        Example { number: 42 };

    // The syntax above is roughly equivalent
    // to the following statements:
    let example = Example { number: 42 };
    let number = example.number;
}

One can also create bindings under different variable names or ignore some of the fields. Note, that the order doesn't matter:

// "first" goes first, then goes "second"
struct Two { first: Int; second: String }

// a helper function
fun makeTwo(): Two {
    return Two {
        first: 42,
        second: "yee-haw",
    };
}

// 👀
fun totalDestruction() {
    // The "first" field is ignored,
    // while the value of "second"
    // is bound under the "cowboy"
    // variable from now on:

    let Two {
        second: cowboy,
        first: _,
    } = makeTwo();
}

🧑‍🍳 Contributors: Gusarich, Novus Nota (docs)
🐙 Implementation: #856
🍽 To be released in: v1.6.0

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