The new module menu classes have some CGL issues left.

Patch fixes missing comments and some wrong object
annotations.

Change-Id: I7b8e810fe732977e9efbd56075683601658971f4
Resolves: #38347
Releases: 6.0
Reviewed-on: http://review.typo3.org/12329
Reviewed-by: Christian Kuhn
Tested-by: Christian Kuhn