ZIG 0.9 Unused constant error

[voltflake]

New compiler gives error on zigling 51, when demonstrating data segment storage.

Code

// However, this "skull_farmer" character will be put in the
// global immutable data even though it's defined in a function.
// Since it's immutable, all invocations of the function can share
// this one value.

const skull_farmer = Character{};

Result

Compiling 051_values.zig...
051_values.zig:77:11: error: unused local constant
    const skull_farmer = Character{};
          ^

[ratfactor]

Yeah, I got this one. There were a bunch!

https://github.com/ratfactor/ziglings/commits/main