D15694: Make implicit fallthroughs a compiler error, remove unneeded breaks

[Aaron Puchert]

aaronpuchert added reviewers: mssola, brauch.

REPOSITORY
  R32 KDevelop

REVISION DETAIL
  https://phabricator.kde.org/D15694

To: aaronpuchert, #kdevelop, mssola, brauch
Cc: rjvbb, brauch, mssola, kossebau, kdevelop-devel, glebaccon, antismap, iodelay, vbspam, geetamc, Pilzschaf, akshaydeo, surgenight, arrowd
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