2010-10-08 Robert Dewar <dewar@adacore.com>

2010-10-08  Robert Dewar  <dewar@adacore.com>

	* sem_util.adb, sem_prag.adb: Minor reformatting

2010-10-08  Hristian Kirtchev  <kirtchev@adacore.com>

	* gnat_rm.texi: Remove the section on pragma Implemented_By_Entry.
	Add section on pragma Implemented.

2010-10-08  Ed Schonberg  <schonberg@adacore.com>

	* sem_ch3.adb (Derive_Subprogram): If an abstract extension has a
	concrete parent with a concrete constructor, the inherited constructor
	is abstract even if the derived type is a null extension.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@165155 138bc75d-0d04-0410-961f-82ee72b054a4