use weak local variables where appropriate default local variables to

use weak local variables where appropriate default local variables to

2007-03-20  Jürg Billeter  <j@bitron.ch>

	* vala/valaparser.vala, vala/valasemanticanalyzer.vala,
	  vala/valamemorymanager.vala, vala/valacodegenerator.vala,
	  vala/valacallback.vala, vala/valainvocationexpression.vala,
	  vala/valamethod.vala, vala/valaobjectcreationexpression.vala: use weak
	  local variables where appropriate
	* vala/parser.y, vala/valasemanticanalyzer.vala: default local variables
	  to strong reference
	* vala/valasemanticanalyzer.vala: don't promote local variables from
	  weak to strong reference
	* vala/valacodegenerator.vala: warn when duplicating non-reference
	  counted structs implicitly

svn path=/trunk/; revision=247