D23086: Be consistent about touch point id type: Qt uses qint32

[Vlad Zagorodniy]

zzag added a comment.


  Someone "fixed" these warnings a while ago, but you reverted the fix.
  
  > This makes sense because libinput provides (non-negative) int32 ids/slots.
  
  Even if it makes sense, the warnings have to be fixed. Comparing signed and unsigned numbers without taking extra measures is bad.

REPOSITORY
  R108 KWin

REVISION DETAIL
  https://phabricator.kde.org/D23086

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