2016-04-19 Arnaud Charlet <charlet@adacore.com>

2016-04-19  Arnaud Charlet  <charlet@adacore.com>

	* sem_util.adb (Copy_Node_With_Replacement):
	use Set_Comes_From_Source instead of directly manipulating
	internals of the node table.
	* sem_util.adb (Within_Scope): refactored to remove duplicated code.
	* sem_aux.adb (Get_Rep_Pragma,
	Subprogram_Body_Entity, Subprogram_Spec): declare variables that
	do not change as constants and initialize them in the declaration.
	(Get_Rep_Pragma, Subprogram_Body_Entity, Subprogram_Spec): declare
	variables that do not change as constants and initialize them
	in the declaration.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@235193 138bc75d-0d04-0410-961f-82ee72b054a4