2019-08-19  Piotr Trojanek  <trojanek@adacore.com>

gcc/ada/

	* sem_ch12.adb (Get_Unit_Instantiation_Node): Simplify Nkind_In
	membership test.
	* sem.adb (Depends_On_Main): Whitespace cleanup; only assign a
	local variable if needed.

From-SVN: r274645