2014-01-23 Vincent Celier <celier@adacore.com>

2014-01-23  Vincent Celier  <celier@adacore.com>

	* prj-conf.adb (Get_Or_Create_Configuration_File): Do not attempt
	to find a configuration project file when Config_File_Name is
	No_Configuration_File.
	* prj-conf.ads (No_Configuration_File): New constant String.
	* prj-pars.adb (Parse): Call Get_Or_Create_Configuration_File
	with Config_File_Name set to No_Configuration_File, so that
	no existing configuration project file will be used, and the
	configuration project will be only created in memory when
	Add_Default_GNAT_Naming_Scheme is called.
	* projects.texi: Minor reformatting.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@206985 138bc75d-0d04-0410-961f-82ee72b054a4