2015-05-26  Bob Duff  <duff@adacore.com>

	* einfo.adb, einfo.ads, sprint.adb, lib-xref.ads: Minor cleanup: Remove
	obsolete Entity_Kinds E_String_Type and E_String_Subtype. Update
	redundant assertions.

2015-05-26  Gary Dismukes  <dismukes@adacore.com>

	* sem_util.adb, sem_util.ads, sem_ch13.adb: Minor typo fixes.

From-SVN: r223680