glib/gqsort.c: Fix C99ism/GCCism
glib/gqsort.c: Fix C99ism/GCCism

-There were a number of variables that were declared in the middle of
 the block, so move these declarations to the start of the block
-There was a use of mempcpy, but it is a GCC extension, so use memcpy since
 we didn't care about the return value of the call to mempcpy.

https://bugzilla.gnome.org/show_bug.cgi?id=672095

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