check.ads, [...] (Install_Null_Excluding_Check): No check in interface thunks since it is performed at the caller side.

2013-04-11  Javier Miranda  <miranda@adacore.com>
                                  
	* check.ads, exp_ch6.adb (Install_Null_Excluding_Check): No check in    
	interface thunks since it is performed at the caller side.
	(Expand_Simple_Function_Return): No accessibility check needed in thunks
	since the check is done by the target routine.

From-SVN: r197810