GDBus: fix name test cases
GDBus: fix name test cases

Since we make message buses come and go, we need to ensure that the
singleton connection instance goes away before attempting to call
g_bus_get_sync() or similar.

Signed-off-by: David Zeuthen <16a4bae6a7afea1fdd75baca6404fe68f285db96@redhat.com>

tchakabam/glib,iConsole/Console-OS_external_bluetooth_glib,cosimoc/glib,darren-clark/android_platform_external_bluetooth_glib,lukasz-skalski/glib,tamaskenez/glib,johne53/MB3Glib,MathieuDuponchelle/glib,zsx/glib,endlessm/glib,ahmedammar/platform_external_gst_glib,bratsche/glib,Distrotech/glib,gale320/glib,justinkb/aosp-bluez.glib,endlessm/glib,pstglia/platform-external-bluetooth-glib,iConsole/Console-OS_external_bluetooth_glib,endlessm/glib,pstglia/external-bluetooth-glib,justinkb/aosp-bluez.glib,pstglia/platform-external-bluetooth-glib,ieei/glib,iConsole/Console-OS_external_bluetooth_glib,mzabaluev/glib,lukasz-skalski/glib,bluez-android/glib,gale320/glib,lukasz-skalski/glib,bratsche/glib,tchakabam/glib,antono/glib,antono/glib,pstglia/external-bluetooth-glib,johne53/MB3Glib,ahmedammar/platform_external_gst_glib,MathieuDuponchelle/glib,mzabaluev/glib,Distrotech/glib,justinkb/aosp-bluez.glib,tamaskenez/glib,cosimoc/glib,krichter722/glib,endlessm/glib,cention-sany/glib,antono/glib,endlessm/glib,Distrotech/glib,bluez-android/glib,01org/android-bluez-glib,tchakabam/glib,01org/android-bluez-glib,darren-clark/android_platform_external_bluetooth_glib,01org/android-bluez-glib,ahmedammar/platform_external_gst_glib,darren-clark/android_platform_external_bluetooth_glib,pstglia/external-bluetooth-glib,cention-sany/glib,lukasz-skalski/glib,pstglia/platform-external-bluetooth-glib,cention-sany/glib,krichter722/glib,tchakabam/glib,cosimoc/glib,zsx/glib,pstglia/external-bluetooth-glib,tamaskenez/glib,gale320/glib,pstglia/platform-external-bluetooth-glib,tchakabam/glib,antono/glib,johne53/MB3Glib,bluez-android/glib,bratsche/glib,ahmedammar/platform_external_gst_glib,djdeath/glib,djdeath/glib,01org/android-bluez-glib,bratsche/glib,zsx/glib,krichter722/glib,djdeath/glib,krichter722/glib,darren-clark/android_platform_external_bluetooth_glib,tamaskenez/glib,mzabaluev/glib,johne53/MB3Glib,pstglia/platform-external-bluetooth-glib,cosimoc/glib,djdeath/glib,ieei/glib,mzabaluev/glib,cention-sany/glib,krichter722/glib,bluez-android/glib,johne53/MB3Glib,tamaskenez/glib,ieei/glib,djdeath/glib,gale320/glib,lukasz-skalski/glib,zsx/glib,01org/android-bluez-glib,ieei/glib,mzabaluev/glib,darren-clark/android_platform_external_bluetooth_glib,justinkb/aosp-bluez.glib,justinkb/aosp-bluez.glib,iConsole/Console-OS_external_bluetooth_glib,Distrotech/glib,cosimoc/glib,ieei/glib,bluez-android/glib,johne53/MB3Glib,cention-sany/glib,MathieuDuponchelle/glib,iConsole/Console-OS_external_bluetooth_glib,pstglia/external-bluetooth-glib,gale320/glib,Distrotech/glib,MathieuDuponchelle/glib,MathieuDuponchelle/glib