2016-04-20  Hristian Kirtchev  <kirtchev@adacore.com>

	* exp_ch4.adb (Expand_Allocator_Expression): Ensure that the
	tag assignment and adjustment preceed the accessibility check.
	* exp_ch7.adb (Is_Subprogram_Call): Reimplemented.

2016-04-20  Hristian Kirtchev  <kirtchev@adacore.com>

	* exp_prag.adb (Expand_Attributes): Ensure that
	the temporary used to capture the value of attribute 'Old's
	prefix is properly initialized.

2016-04-20  Javier Miranda  <miranda@adacore.com>

	* exp_unst.ads, exp_unst.adb (Get_Level, Subp_Index): Moved to library
	level.

From-SVN: r235258