CppEditor: Reorder quickfixes tests

Needed for easier diff for upcoming refactoring...

Change-Id: I779b25d09a03fc1ed54e2ba35946678a5e863265
Reviewed-by: Nikolai Kosjar <nikolai.kosjar@digia.com>
CppEditor: Refactor quickfix tests

Step 1

Change-Id: I1416df4e152be231be386209ca1f360be31c58c6
Reviewed-by: Nikolai Kosjar <nikolai.kosjar@digia.com>
CppEditor: Reorder virtual methods tests

For easier diff

Change-Id: I34effdc85c4bef51b80f5763e1522162c2b64b4e
Reviewed-by: Nikolai Kosjar <nikolai.kosjar@digia.com>
CppEditor: Make insert virtual function tests data-driven

Change-Id: Iffb7e667098050ceb38eab40d4ed7850bf3bea94
Reviewed-by: Nikolai Kosjar <nikolai.kosjar@digia.com>