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Suggestion
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    Resolution: Done
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P3: Somewhat important
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    4.3.0
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    None
 
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        2b17b0235b70f89d15d3b91a14c3297d38377f94
 
These functions should take a const QWidget *:
 QPoint mapTo(QWidget *, const QPoint &) const; 
 QPoint mapFrom(QWidget *, const QPoint &) const;
The signatures of these functions cannot be changed without breaking binary compatibility.