scng.adb: Add call to new Check_EOF routine

scng.adb: Add call to new Check_EOF routine

2005-06-14  Robert Dewar  <dewar@adacore.com>

	* scng.adb: Add call to new Check_EOF routine
	(Accumulate_Checksum): Properly handle wide wide char >= 2 ** 24
	Add some comments regarding wide character handling

	* style.ads, styleg.ads, styleg.adb: Implement new style switch -gnatyu

	* stylesw.ads, stylesw.adb: Implement new style switch -gnatyu

	* g-utf_32.ads, g-utf_32.adb (Is_UTF_32_Non_Graphic): Other_Format
	characters are now considered graphic characters and hence yield false
	in this call.

From-SVN: r101056