[TASK] Improve code coverage of Mvc/Request

Currently two important methods "getControllerObjectName"
and "setControllerObjectName" aren't tested at all. This
patch provides tests for both.

Releases: 6.1
Resolves: #44805
Change-Id: I3bcbfc72c5b77da3d876489dd4423c79823171c1
Reviewed-on: https://review.typo3.org/17702
Reviewed-by: Daniel Hürtgen
Tested-by: Daniel Hürtgen
Reviewed-by: Christian Kuhn
Tested-by: Christian Kuhn
[TASK] Provide unit test for Mvc/Response

Releases: 6.1
Resolves: #44804
Change-Id: Iaaaaa1e10915ec7527bf89605b557fa7f75d2df3
Reviewed-on: https://review.typo3.org/17701
Reviewed-by: Mattias Nilsson
Reviewed-by: Wouter Wolters
Tested-by: Wouter Wolters
Reviewed-by: Markus Günther
Tested-by: Markus Günther
Reviewed-by: Christian Kuhn
Tested-by: Christian Kuhn