Remove "2" from Qt Quick Controls directories

Qt Quick Controls 2 was named that way because it was a follow-up to
Qt Quick Controls 1.x. Now that Qt Quick Controls 1 is no longer
supported, we don't need to have "2" in the name. Work on this was
already started for the documentation in
1abdfe5d5a052f2298b7bf657513dfa7e0c66a56.

By doing this renaming a few weeks before feature freeze, it won't
affect the release but still results in as little time possible spent
manually fixing conflicts in cherry-picks from non-LTS releases as a
result of the renaming.

This patch does the following:

- Renames directories.
- Adapts CMakeLists.txt and other files to account for the new paths.

A follow-up patch will handle documentation.

It does not touch library names or other user-facing stuff, as that
will have to be done in Qt 7.

Task-number: QTBUG-95413
Change-Id: I170d8db19033ee71e495ff0c5c1a517a41ed7634
Reviewed-by: Mitch Curtis <mitch.curtis@qt.io>

1 files changed, 100 insertions, 0 deletions

diff --git a/tests/auto/quickcontrols/translation/data/stackView.qml b/tests/auto/quickcontrols/translation/data/stackView.qml
new file mode 100644
index 0000000000..44d85c2ea1
--- /dev/null
+++ b/tests/auto/quickcontrols/translation/data/stackView.qml
@@ -0,0 +1,100 @@
+// Copyright (C) 2021 The Qt Company Ltd.
+// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause
+
+import QtQuick
+import QtQuick.Controls
+import QtQuick.Window
+
+Window {
+    id: window
+    width: 640
+    height: 480
+
+    property var engine
+
+    signal calledTranslate
+
+    property int pagesCreated: 0
+
+    Component {
+        id: translatePageComponent
+        Item {
+            id: root
+
+            Component.onCompleted: objectName = "translatePageRootItem" + pagesCreated++
+
+            StackView.onActivating: {
+                retranslateTimer.start()
+            }
+
+            Timer {
+                id: retranslateTimer
+                objectName: "retranslateTimer"
+                interval: 100
+                repeat: true
+
+                property int count: 0
+
+                onTriggered: {
+
+                    // This triggers the crash without retranslate().
+                    // retranslate() got cleverer in 6.2, sidestepping the issue.
+                    replaceExit.animations[0].target = null;
+                    replaceExit.animations[0].target = replaceExit.ViewTransition.item
+
+                    console.log("timer within", root, "is about to call retranslate")
+                    window.engine.retranslate()
+                    window.calledTranslate()
+                    count++
+                    if(count >= 10) {
+                        stop()
+                        count = 0
+                    }
+                }
+            }
+
+            Button {
+                objectName: "button"
+                text: qsTr("Push")
+                onClicked: root.StackView.view.replace(translatePageComponent)
+            }
+        }
+    }
+
+    StackView {
+        id: stack
+        objectName: "stackView"
+        anchors.fill: parent
+        initialItem: translatePageComponent
+
+        replaceEnter: Transition {
+            id: replaceEnter
+            objectName: "enterTransition"
+
+            PropertyAnimation {
+                objectName: replaceEnter.objectName + "PropertyAnimation"
+                target: replaceEnter.ViewTransition.item
+                property: "opacity"
+                from: 0
+                to: 1
+                duration: 10
+            }
+
+        }
+
+        replaceExit: Transition {
+            id: replaceExit
+            objectName: "exitTransition"
+
+            PropertyAnimation {
+                objectName: replaceExit.objectName + "PropertyAnimation"
+                target: replaceExit.ViewTransition.item
+                property: "opacity"
+                from: 1
+                to: 0
+                duration: 10
+            }
+        }
+    }
+}
+