use yyleng instead of strlen don't write unnecessary attributes to reduce

use yyleng instead of strlen don't write unnecessary attributes to reduce

2007-04-06  Jürg Billeter  <j@bitron.ch>

	* vala/scanner.l: use yyleng instead of strlen
	* vala/valainterfacewriter.vala: don't write unnecessary attributes to
	  reduce parse time
	* vapi/atk.vala, vapi/gdk-2.0.vala, vapi/gtk+-2.0.vala, vapi/pango.vala:
	  remove unnecessary attributes to reduce parse time

svn path=/trunk/; revision=282