test: fix comptime var

Author: krichprollsch

src/dom/document.zig

@@ -449,7 +449,7 @@ pub fn testExecFn(
     try checkCases(js_env, &adoptNode);
 
     const tags = comptime parser.Tag.all();
-    comptime var createElements: [(tags.len) * 2]Case = undefined;
+    var createElements: [(tags.len) * 2]Case = undefined;
     inline for (tags, 0..) |tag, i| {
         const tag_name = @tagName(tag);
         createElements[i * 2] = Case{