Resync.

From-SVN: r136081

gcc/ada/ChangeLog

+2008-05-28  Ed Schonberg  <schonberg@adacore.com>
+
+	* sem_ch3.adb (Diagnose_Interface): Cleanup error messages involving
+	improper progenitor names, and avoid cascaded errors.
+
+2008-05-28  Robert Dewar  <dewar@adacore.com>
+
+	* gnat_rm.texi: Add note on Old giving warning when applied to constant
+
+	* sem_attr.adb (Analyze_Attribute, case Old): Give warning if prefix is
+	a constant
+
+2008-05-28  Robert Dewar  <dewar@adacore.com>
+
+	* exp_fixd.adb (Build_Multiply): Correct one-off error in computing
+	size
+
+2008-05-28  Robert Dewar  <dewar@adacore.com>
+
+	* exp_ch5.adb:
+	(Expand_Simple_Function_Return): Copy unaligned result into temporary
+
 2008-05-28  Javier Miranda  <miranda@adacore.com>
 
 	* sem_ch3.adb (Derive_Progenitor_Primitives): Add missing support