s-casi16.adb (Uhalf): Rewrite it as integer with small alignment.

s-casi16.adb (Uhalf): Rewrite it as integer with small alignment.

2008-05-26  Eric Botcazou  <ebotcazou@adacore.com>

	* s-casi16.adb (Uhalf): Rewrite it as integer with small alignment.
	(Compare_Array_S16): Adjust for above change.
	* s-casi32.adb (Uword): Likewise.
	(Compare_Array_S32): Likewise.
	* s-casi64.adb (Uword): Likewise.
	(Compare_Array_S64): Likewise.
	* s-caun16.adb (Uhalf): Likewise.
	(Compare_Array_U16): Likewise.
	* s-caun32.adb (Uword): Likewise.
	(Compare_Array_U32): Likewise.
	* s-caun64.adb (Uword): Likewise.
	(Compare_Array_U64): Likewise.

From-SVN: r135942