exp_ch6.adb (Expand_N_Subprogram_Body): Mark the spec as returning by reference not...

exp_ch6.adb (Expand_N_Subprogram_Body): Mark the spec as returning by reference not just for subprogram body stubs...

2017-01-19  Hristian Kirtchev  <kirtchev@adacore.com>

	* exp_ch6.adb (Expand_N_Subprogram_Body): Mark the spec as
	returning by reference not just for subprogram body stubs,
	but for all subprogram cases.
	* sem_util.adb: Code reformatting.
	(Requires_Transient_Scope): Update the call to Results_Differ.
	(Results_Differ): Update the parameter profile and the associated
	comment on usage.

From-SVN: r244616