So in such cases, is a 3rd (maybe even a 4th?) tab row created to make room for all those names? That must
really be crazy. :?O
You can get a fair amount of text into a list:

If you're really worried about long strings, other options are to:
• Have the dialog box resize at runtime to accommodate the list's longest category.
• Add a horizontal scrollbar to the list, and/or
• Make the dialog box horizontally user-resizeable, where resizing affects only the list control.
Besides, do
tabs wide enough to say things like "Access to Design Objects" and "Expression/Path Coverage" look better than list items that say those things? I don't think so... Long strings are actually a
reason to use a list.
As a usability consultant, I assure you that many apps, in many languages, use vertical lists rather than skittering multi-row tabs. I'm sure that MRT's began as temporary kludge when extra categories were added to an existing project. They're not good GUI design. User controls shouldn't move around while you're trying to use them (unless, say, you're writing one of those gag apps with buttons that run away from your cursor when you try to click them).
And maybe I needn't point this out, but CS
itself is a vertical (Start) menu for peeps who don't like horizontal (Start Screen) ones... Does this make a bit more sense when you see it that way? ;?)