Move the QString comparison operator as non member function

The operator== and similar should not be member of the class. This
ensure a symertry.

Indeed, consider this code
  string == string1 + string2;
  string1 + string2 == string;

The first line compile fine even if QStringBuilder is used, because
QStringBuilder will be converted to QString implicitly.

But the second line do not compile if the operator== is a member of
QString, because the implicit conversion rules do not apply.

For this reason, the symetric operators should not be declared as
member.

Change-Id: I3f7c11fab45a9133f7a424bdfcb894f97da9282b
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>

0 files changed, 0 insertions, 0 deletions