This patch corrects an error in the compiler whereby gnatbind may crash
during calculation of file checksums in certain corner cases due to
uninitialized lookup tables.

Tested on x86_64-pc-linux-gnu, committed on trunk

gcc/ada/

	* gnatbind.adb (Gnatbind): Add initialize call for Uintp
	* gnatls.adb (Gnatls): Likewise.
	* gprep.adb (Gnatprep): Likewise.
	* make.adb (Initialize): Likewise.