exp_ch6.adb (Expand_Protected_Subprogram_Call): Add guard to better detect call withi...

exp_ch6.adb (Expand_Protected_Subprogram_Call): Add guard to better detect call within an entry_wrapper.

2017-01-06  Ed Schonberg  <schonberg@adacore.com>

	* exp_ch6.adb (Expand_Protected_Subprogram_Call): Add guard to
	better detect call within an entry_wrapper.
	* sem_res.adb (Resolve_Call): A protected call within an
	entity_wrapper is analyzed in the context of the protected
	object but corresponds to a pre-analysis and is not an access
	before elaboration.
	* sem_attr.adb: Minor reformatting.

From-SVN: r244139