support creation methods in structs, replace InstanceByReference method

support creation methods in structs, replace InstanceByReference method

2007-09-15  Juerg Billeter  <j@bitron.ch>

	* vala/valainterfacewriter.vala, vala/valamethod.vala,
	  vala/valasemanticanalyzer.vala, vala/valastruct.vala,
	  gobject/valacodegenerator.vala,
	  gobject/valacodegeneratorinvocationexpression.vala,
	  gobject/valacodegeneratormethod.vala, vapigen/valagidlparser.vala,
	  vapi/glib-2.0.vala: support creation methods in structs, replace
	  InstanceByReference method attribute by SimpleType type attribute
	  (inverse effect)

	* tests/Makefile.am, tests/structs.exp, tests/structs.vala: add struct
	  declaration test

	* vapi/gdk-2.0.vala, vapi/gtk+-2.0.vala, vapi/pango.vala: regenerated

svn path=/trunk/; revision=608