std.zon: populate `Zoir.Node.Index` values with corresponding ZOIR node
This allows using `std.zon` to parse schemas which are not directly
representable in the Zig type system; for instance, `build.zig.zon`.
3b2fec17a4Mason Remaley committed on 4/2/2025, 5:08:04 AM· committed by mluggparent1b62a22