debugger: disable "set target-async on"
debugger: disable "set target-async on"

Has a tendency to crash gdb, at least release 7.3.1 and today's cvs.

Change-Id: Iba42891ddad000bf97b45d5daf8985d48d4fd977
Reviewed-on: http://codereview.qt-project.org/5617
Reviewed-by: hjk <6fac1c92f5b9c7890a04d7f8a9d8912d16355eac@ovi.com>

hdweiss/qt-creator-visualizer,azat/qtcreator,AltarBeastiful/qt-creator,Distrotech/qtcreator,kuba1/qtcreator,amyvmiwei/qt-creator,jonnor/qt-creator,colede/qtcreator,ostash/qt-creator-i18n-uk,colede/qtcreator,xianian/qt-creator,hdweiss/qt-creator-visualizer,KDAB/KDAB-Creator,kuba1/qtcreator,ostash/qt-creator-i18n-uk,maui-packages/qt-creator,KDAB/KDAB-Creator,jonnor/qt-creator,omniacreator/qtcreator,syntheticpp/qt-creator,omniacreator/qtcreator,darksylinc/qt-creator,AltarBeastiful/qt-creator,KDE/android-qt-creator,malikcjm/qtcreator,amyvmiwei/qt-creator,duythanhphan/qt-creator,jonnor/qt-creator,Distrotech/qtcreator,danimo/qt-creator,azat/qtcreator,farseerri/git_code,KDE/android-qt-creator,hdweiss/qt-creator-visualizer,farseerri/git_code,danimo/qt-creator,omniacreator/qtcreator,danimo/qt-creator,kuba1/qtcreator,duythanhphan/qt-creator,amyvmiwei/qt-creator,darksylinc/qt-creator,farseerri/git_code,syntheticpp/qt-creator,kuba1/qtcreator,kuba1/qtcreator,azat/qtcreator,omniacreator/qtcreator,AltarBeastiful/qt-creator,AltarBeastiful/qt-creator,KDE/android-qt-creator,bakaiadam/collaborative_qt_creator,jonnor/qt-creator,azat/qtcreator,darksylinc/qt-creator,danimo/qt-creator,colede/qtcreator,ostash/qt-creator-i18n-uk,omniacreator/qtcreator,KDAB/KDAB-Creator,bakaiadam/collaborative_qt_creator,Distrotech/qtcreator,xianian/qt-creator,martyone/sailfish-qtcreator,danimo/qt-creator,danimo/qt-creator,Distrotech/qtcreator,colede/qtcreator,maui-packages/qt-creator,richardmg/qtcreator,darksylinc/qt-creator,danimo/qt-creator,richardmg/qtcreator,AltarBeastiful/qt-creator,amyvmiwei/qt-creator,darksylinc/qt-creator,kuba1/qtcreator,martyone/sailfish-qtcreator,farseerri/git_code,richardmg/qtcreator,malikcjm/qtcreator,malikcjm/qtcreator,martyone/sailfish-qtcreator,darksylinc/qt-creator,martyone/sailfish-qtcreator,richardmg/qtcreator,richardmg/qtcreator,omniacreator/qtcreator,syntheticpp/qt-creator,malikcjm/qtcreator,AltarBeastiful/qt-creator,AltarBeastiful/qt-creator,kuba1/qtcreator,xianian/qt-creator,hdweiss/qt-creator-visualizer,colede/qtcreator,duythanhphan/qt-creator,Distrotech/qtcreator,farseerri/git_code,duythanhphan/qt-creator,duythanhphan/qt-creator,maui-packages/qt-creator,martyone/sailfish-qtcreator,azat/qtcreator,xianian/qt-creator,amyvmiwei/qt-creator,martyone/sailfish-qtcreator,maui-packages/qt-creator,hdweiss/qt-creator-visualizer,xianian/qt-creator,amyvmiwei/qt-creator,martyone/sailfish-qtcreator,azat/qtcreator,KDAB/KDAB-Creator,jonnor/qt-creator,farseerri/git_code,colede/qtcreator,hdweiss/qt-creator-visualizer,malikcjm/qtcreator,duythanhphan/qt-creator,duythanhphan/qt-creator,maui-packages/qt-creator,xianian/qt-creator,Distrotech/qtcreator,KDAB/KDAB-Creator,richardmg/qtcreator,xianian/qt-creator,jonnor/qt-creator,darksylinc/qt-creator,syntheticpp/qt-creator,ostash/qt-creator-i18n-uk,KDE/android-qt-creator,KDE/android-qt-creator,syntheticpp/qt-creator,amyvmiwei/qt-creator,bakaiadam/collaborative_qt_creator,syntheticpp/qt-creator,ostash/qt-creator-i18n-uk,colede/qtcreator,ostash/qt-creator-i18n-uk,bakaiadam/collaborative_qt_creator,Distrotech/qtcreator,darksylinc/qt-creator,KDE/android-qt-creator,xianian/qt-creator,martyone/sailfish-qtcreator,bakaiadam/collaborative_qt_creator,AltarBeastiful/qt-creator,omniacreator/qtcreator,richardmg/qtcreator,KDE/android-qt-creator,xianian/qt-creator,farseerri/git_code,bakaiadam/collaborative_qt_creator,malikcjm/qtcreator,ostash/qt-creator-i18n-uk,danimo/qt-creator,danimo/qt-creator,maui-packages/qt-creator,kuba1/qtcreator,kuba1/qtcreator,bakaiadam/collaborative_qt_creator,farseerri/git_code,maui-packages/qt-creator,KDAB/KDAB-Creator,martyone/sailfish-qtcreator,amyvmiwei/qt-creator,KDE/android-qt-creator,syntheticpp/qt-creator,malikcjm/qtcreator