[meta.reflection.queries]/4.3 Fix syntax in example (#8152)

A misapplication of P2996R13.

Author: birbacher

source/meta.tex

@@ -3984,7 +3984,7 @@
 
 static_assert(^^x != ^^y);                          // OK, \tcode{r} and \tcode{y} are different variables so their
                                                     // reflections compare different
-static_assert(object_of((^^x) == object_of(^^y)));  // OK, because \tcode{y} is a reference
+static_assert(object_of(^^x) == object_of(^^y));    // OK, because \tcode{y} is a reference
                                                     // to \tcode{x}, their underlying objects are the same
 \end{codeblock}
 \end{example}