master
 1fn comptimeArray(comptime _: []const u8) void {}
 2fn bar() u8 {
 3    return 123;
 4}
 5export fn entry() void {
 6    const y = bar();
 7    comptimeArray(&.{y});
 8}
 9
10// error
11//
12// :7:19: error: unable to resolve comptime value
13// :7:19: note: argument to comptime parameter must be comptime-known
14// :1:18: note: parameter declared comptime here