clean.adb, [...]: Fix bad table increment values (much too small)

clean.adb, [...]: Fix bad table increment values (much too small)

2006-10-31  Robert Dewar  <dewar@adacore.com>

	* clean.adb, gnatname.adb, gnatsym.adb, prep.adb, prep.ads,
	prepcomp.adb, prj.ads, prj-strt.adb, sem_maps.ads,
	vms_conv.adb: Fix bad table increment values (much too small)

	* table.adb (Realloc): Make sure we get at least some new elements
	Defends against silly small values for table increment

From-SVN: r118249