Make QStringList an alias to QList<QString>

Fix our API, so that QStringList and QList<QString> are the
same thing.

This required a bit of refactoring in QList and moving the
indexOf(), lastIndexOf() and contains() method into
QListSpecialMethods. In addition, we need to ensure that
the QStringList(const QString&) constructor is still available
for compatibility with Qt 5.

Once those two are done, all methods in QStringList can be moved
into QListSpecialMethods<QString>.

Change-Id: Ib8afbf5b6d9df4d0d47051252233506f62335fa3
Reviewed-by: Andrei Golubev <andrei.golubev@qt.io>
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>

1 files changed, 0 insertions, 1 deletions

diff --git a/src/corelib/kernel/qvariant.h b/src/corelib/kernel/qvariant.h
index 47103725f8..ad766c9a8e 100644
--- a/src/corelib/kernel/qvariant.h
+++ b/src/corelib/kernel/qvariant.h
@@ -74,7 +74,6 @@ class QLine;
 class QLineF;
 class QLocale;
 class QTransform;
-class QStringList;
 class QTime;
 class QPoint;
 class QPointF;