Port remaining QQC1 uses

CMakeLists.txt

@@ -352,7 +352,7 @@ set(HAVE_ACCESSIBILITY ${QAccessibilityClient_FOUND})
 
 include(ECMFindQmlModule)
 ecm_find_qmlmodule(QtQuick 2.3)
-ecm_find_qmlmodule(QtQuick.Controls 1.2)
+ecm_find_qmlmodule(QtQuick.Controls 2.15)
 ecm_find_qmlmodule(QtQuick.Layouts 1.3)
 ecm_find_qmlmodule(QtQuick.Window 2.1)
 ecm_find_qmlmodule(QtMultimedia 5.0)

tests/inputmethodstest.qml

@@ -6,7 +6,7 @@
 
     SPDX-License-Identifier: GPL-2.0-or-later
 */
-import QtQuick.Controls 1.4
+import QtQuick.Controls 2.15
 import QtQuick.Layouts 1.2
 
 GridLayout {

tests/unmapdestroytest.qml

@@ -6,7 +6,7 @@
 import QtQuick 2.1
 import QtQuick.Window 2.1
 import QtQuick.Layouts 1.1
-import QtQuick.Controls 1.1
+import QtQuick.Controls 2.15
 
 /*
  * Small test application to test the difference between unmap and destroy.