[Qt-creator] Crash when trying to remove file from project

[Jean-Baptiste Rouault]

I wanted to remove a file from my project today and Qt Creator crashed juste 
after I had confirmed the deletion.
I tried again, the bug is always reproducible.
I realised after that it's a very specific case, because the file I tried to 
suppress was included from a .pri file.
Here is gdb bt output :

Program received signal SIGSEGV, Segmentation fault.
[Switching to Thread 0x7f16ab524700 (LWP 18007)]    
0x0000000000000001 in ?? ()                         
(gdb) bt                                            
#0  0x0000000000000001 in ?? ()                     
#1  0x00007f16a0a57e01 in 
Qt4ProjectManager::Internal::ProEditorModel::proVariable ()
   from /home/noobinet/qtcreator-0.9/lib/Nokia/libQt4ProjectManager.so.1.0.0         
#2  0x00007f16a0a59aa6 in 
Qt4ProjectManager::Internal::ProEditorModel::findVariables ()
   from /home/noobinet/qtcreator-0.9/lib/Nokia/libQt4ProjectManager.so.1.0.0
#3  0x00007f16a0a59b40 in 
Qt4ProjectManager::Internal::ProEditorModel::findVariables ()
   from /home/noobinet/qtcreator-0.9/lib/Nokia/libQt4ProjectManager.so.1.0.0
#4  0x00007f16a0a10e0d in 
Qt4ProjectManager::Internal::Qt4PriFileNode::changeFiles ()
   from /home/noobinet/qtcreator-0.9/lib/Nokia/libQt4ProjectManager.so.1.0.0
#5  0x00007f16a0a11998 in 
Qt4ProjectManager::Internal::Qt4PriFileNode::removeFiles ()
   from /home/noobinet/qtcreator-0.9/lib/Nokia/libQt4ProjectManager.so.1.0.0
#6  0x00007f16a30fd853 in ProjectExplorer::ProjectExplorerPlugin::removeFile 
() from /home/noobinet/qtcreator-0.9/lib/Nokia/libProjectExplorer.so.1.0.0
#7  0x00007f16a3179f9d in ProjectExplorer::ProjectExplorerPlugin::qt_metacall 
() from /home/noobinet/qtcreator-0.9/lib/Nokia/libProjectExplorer.so.1.0.0
#8  0x00007f16a885e412 in QMetaObject::activate () from 
/home/noobinet/qtcreator-0.9/bin/../lib/libQtCore.so.4
#9  0x00007f16aa4bb397 in QAction::triggered () from 
/home/noobinet/qtcreator-0.9/bin/../lib/libQtGui.so.4
#10 0x00007f16aa4bdc17 in QAction::qt_metacall () from 
/home/noobinet/qtcreator-0.9/bin/../lib/libQtGui.so.4
#11 0x00007f16a885e412 in QMetaObject::activate () from 
/home/noobinet/qtcreator-0.9/bin/../lib/libQtCore.so.4
#12 0x00007f16aa4bb397 in QAction::triggered () from 
/home/noobinet/qtcreator-0.9/bin/../lib/libQtGui.so.4
#13 0x00007f16aa4bbc40 in QAction::activate () from 
/home/noobinet/qtcreator-0.9/bin/../lib/libQtGui.so.4
#14 0x00007f16aa8f006d in QMenuPrivate::activateAction () from 
/home/noobinet/qtcreator-0.9/bin/../lib/libQtGui.so.4
#15 0x00007f16aa50f198 in QWidget::event () from 
/home/noobinet/qtcreator-0.9/bin/../lib/libQtGui.so.4
#16 0x00007f16aa8ee0b1 in QMenu::event () from 
/home/noobinet/qtcreator-0.9/bin/../lib/libQtGui.so.4
#17 0x00007f16aa4c1d4f in QApplicationPrivate::notify_helper () from 
/home/noobinet/qtcreator-0.9/bin/../lib/libQtGui.so.4
#18 0x00007f16aa4c71e8 in QApplication::notify () from 
/home/noobinet/qtcreator-0.9/bin/../lib/libQtGui.so.4
#19 0x00007f16a8849634 in QCoreApplication::notifyInternal () from 
/home/noobinet/qtcreator-0.9/bin/../lib/libQtCore.so.4
#20 0x00007f16aa4c3fb1 in QApplicationPrivate::sendMouseEvent () from 
/home/noobinet/qtcreator-0.9/bin/../lib/libQtGui.so.4
#21 0x00007f16aa528aaa in QETWidget::translateMouseEvent () from 
/home/noobinet/qtcreator-0.9/bin/../lib/libQtGui.so.4
#22 0x00007f16aa527df1 in QApplication::x11ProcessEvent () from 
/home/noobinet/qtcreator-0.9/bin/../lib/libQtGui.so.4
#23 0x00007f16aa54ded8 in x11EventSourceDispatch () from 
/home/noobinet/qtcreator-0.9/bin/../lib/libQtGui.so.4
#24 0x00007f16a803936a in g_main_context_dispatch () from 
/usr/lib/libglib-2.0.so.0
#25 0x00007f16a803cb1d in ?? () from /usr/lib/libglib-2.0.so.0
#26 0x00007f16a803ccdb in g_main_context_iteration () from 
/usr/lib/libglib-2.0.so.0
#27 0x00007f16a887313e in QEventDispatcherGlib::processEvents () from 
/home/noobinet/qtcreator-0.9/bin/../lib/libQtCore.so.4
#28 0x00007f16aa54dcdf in QGuiEventDispatcherGlib::processEvents () from 
/home/noobinet/qtcreator-0.9/bin/../lib/libQtGui.so.4
#29 0x00007f16a88489c5 in QEventLoop::processEvents () from 
/home/noobinet/qtcreator-0.9/bin/../lib/libQtCore.so.4
#30 0x00007f16a8848d0a in QEventLoop::exec () from 
/home/noobinet/qtcreator-0.9/bin/../lib/libQtCore.so.4
#31 0x00007f16a884ac19 in QCoreApplication::exec () from 
/home/noobinet/qtcreator-0.9/bin/../lib/libQtCore.so.4
---Type <return> to continue, or q <return> to quit---
#32 0x0000000000408ba5 in main ()

Keep up the good work, Qt Creator is better every day :)
Jean-Baptiste Rouault