Ruby: Sync comment for self API graph label

Author: RasmusWL

ruby/ql/lib/codeql/ruby/ApiGraphs.qll

@@ -793,13 +793,11 @@ module API {
       or
       pos.isAnyNamed() and
       result = Label::keywordParameter(_)
+      //
       // Note: there is currently no API graph label for `self`.
       // It was omitted since in practice it means going back to where you came from.
       // For example, `base.getMethod("foo").getSelf()` would just be `base`.
       // However, it's possible we'll need it later, for identifying `self` parameters or post-update nodes.
-      // or
-      // pos.isSelf() and
-      // ...
     }
 
     /** Gets the API graph label corresponding to the given parameter position. */
@@ -829,10 +827,11 @@ module API {
       or
       pos.isAnyNamed() and
       result = Label::keywordParameter(_)
-      // TODO: needs handling of `self` ParameterPosition
-      // or
-      // pos.isSelf() and
-      // ...
+      //
+      // Note: there is currently no API graph label for `self`.
+      // It was omitted since in practice it means going back to where you came from.
+      // For example, `base.getMethod("foo").getSelf()` would just be `base`.
+      // However, it's possible we'll need it later, for identifying `self` parameters or post-update nodes.
     }
   }
 }