Editorial: change 2 intrinsic-names back to old-style

Commit f1b22ef (tc39#1376) changed lots of intrinsic-names
from old-style to new-style.

But these two should have stayed old-style,
so switch them back.

(See tc39#1636 (comment))

spec.html

@@ -24660,7 +24660,7 @@ <h1>Object.values ( _O_ )</h1>
       <h1>Properties of the Object Prototype Object</h1>
       <p>The Object prototype object:</p>
       <ul>
-        <li>is the intrinsic object <dfn>%Object.prototype%</dfn>.</li>
+        <li>is the intrinsic object <dfn>%ObjectPrototype%</dfn>.</li>
         <li>is an immutable prototype exotic object.</li>
         <li>has a [[Prototype]] internal slot whose value is *null*.</li>
       </ul>
@@ -38792,7 +38792,7 @@ <h1>Properties of the AsyncFunction Prototype Object</h1>
         <li>is an ordinary object.</li>
         <li>is not a function object and does not have an [[ECMAScriptCode]] internal slot or any other of the internal slots listed in <emu-xref href="#table-27"></emu-xref>.</li>
         <li>is the value of the `prototype` property of %AsyncFunction%.</li>
-        <li>is the intrinsic object <dfn>%AsyncFunction.prototype%</dfn>.</li>
+        <li>is the intrinsic object <dfn>%AsyncFunctionPrototype%</dfn>.</li>
         <li>has a [[Prototype]] internal slot whose value is %Function.prototype%.</li>
       </ul>