Fix crash during shutdown
Summary: Fix crash during shutdown. The root cause is that when Dolphin in stopped as part of an activity, the KItemListViewAccessible destructor is called after QApplication::exec has returned causing Qt to already having cleaned up the QAccessibleInterface instances kept in KItemListViewAccessible. Instead of storing the pointers to QAccessibleInterface we store the QAccessible::Id so that we can use the QAccessible::deleteAccessibleInterface function for deleting the instances. BUG: 402784 Test Plan: I wasn't able to reproduce the crash in the first place, but I have just opened and closed Dolphin a few times and verified the the QAccessibleInterface instances are correctly cleaned up. Reviewers: #dolphin, elvisangelaccio, ngraham Reviewed By: #dolphin, elvisangelaccio Subscribers: kfm-devel Tags: #dolphin Differential Revision: https://phabricator.kde.org/D19083
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cf2da56c
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