Revert

	Revert
	2009-04-29  Vincent Celier  <celier@adacore.com>

	* sinput-l.adb (Load_File): When preprocessing, set temporarily the
	Source_File_Index_Table entries for the source, to avoid crash when
	reporting an error.

	* gnatcmd.adb (Test_If_Relative_Path): Use
	Makeutl.Test_If_Relative_Path.

	* makeutl.adb:(Test_If_Relative_Path): Process switches --RTS= only if
	Including_RTS is True.

	* makeutl.ads (Test_If_Relative_Path): New Boolean parameter
	Including_RTS defaulted to False.

	* sinput.ads, scans.ads, err_vars.ads: Initialize some variables with
	a default value.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@146991 138bc75d-0d04-0410-961f-82ee72b054a4