2017-04-27  Ed Schonberg  <schonberg@adacore.com>

	* sem_attr.adb (Analyze_Attribute, case 'Image): In Ada2012 the
	prefix can be an object reference in which case Obj'Image (X)
	can only be interpreted as an indexing of the parameterless
	version of the attribute.
	* par-ch4.adb (P_Name): An attribute reference can be the prefix of
	an indexing or a slice operation if the attribute does not require
	parameters. In Ada2012 'Image also belongs in this category,
	and A'Image (lo .. hi) is legal and must be parsed as a slice.

2017-04-27  Yannick Moy  <moy@adacore.com>

	* exp_ch4.adb: Minor reformatting.
	* gnat1drv.adb (Adjust_Global_Switches): When in GNATprove mode,
	disable the CodePeer and C generation modes. Similar to the
	opposite actions done in CodePeer mode.

From-SVN: r247331