Regarding commit 049175604 (fix compile with QT_USE_FAST_CONCATENATION....)

[David Nolden]

I think this makes the code uglier, without any gain. All of the
changed code-locations are not performance relevant.

Basically all the changes are:

myString + "myText"
->
QString(myString + "myText")

Which is the opposite of natural. So why do this?