move iteration of throw statements, try statements, and catch clauses from

move iteration of throw statements, try statements, and catch clauses from

2007-07-13  Juerg Billeter  <j@bitron.ch>

	* vala/valacatchclause.vala, vala/valacodevisitor.vala,
	  vala/valamemorymanager.vala, vala/valasemanticanalyzer.vala,
	  vala/valasymbolbuilder.vala, vala/valasymbolresolver.vala,
	  vala/valathrowstatement.vala, vala/valatrystatement.vala,
	  gobject/valacodegenerator.vala: move iteration of throw statements,
	  try statements, and catch clauses from accept to accept_children
	  method, fixes nested try statements
	* gobject/valacodegenerator.vala: clear unhandled error instead of
	  returning from the current function
	* vala/valasemanticanalyzer.vala: generic pointer is compatible with
	  generic pointer
	* vapi/glib-2.0.vala: add some more default values

svn path=/trunk/; revision=354