2018-07-31  Ed Schonberg  <schonberg@adacore.com>

gcc/ada/

	* exp_unst.adb (Subp_Index): In the case of a protected
	operation, the relevant entry is the generated
	protected_subprogram_body into which the original body is
	rewritten. Assorted cleanup and optimizations.

From-SVN: r263105