D23011: Replace foreach loops and improve code style in composite

romangg created this revision.
romangg added a reviewer: KWin.
Herald added a project: KWin.
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romangg requested review of this revision.

REVISION SUMMARY
  Replaces foreach loops with modern for loops and improve code style overall.

TEST PLAN
  Auto tests pass as before and manually in X and Wayland sessions.

REPOSITORY
  R108 KWin

BRANCH
  compStyle

REVISION DETAIL
  https://phabricator.kde.org/D23011

AFFECTED FILES
  composite.cpp

To: romangg, #kwin
Cc: kwin, LeGast00n, sbergeron, jraleigh, fbampaloukas, GB_2, mkulinski, ragreen, jackyalcine, Pitel, iodelay, crozbo, bwowk, ZrenBot, ngraham, alexeymin, himcesjf, lesliezhai, ali-mohamed, hardening, romangg, jensreuterberg, abetts, sebas, apol, mart