rest of changes, from stash

src/unicode/lut.zig

@@ -177,3 +177,7 @@ pub fn Tables(comptime Elem: type) type {
         }
     };
 }
+
+test {
+    std.testing.refAllDecls(@This());
+}

src/unicode/props.zig

@@ -222,3 +222,8 @@ pub fn main() !void {
     //     t.stage3.len,
     // });
 }
+
+test {
+    _ = table;
+    _ = Properties;
+}