support LAMBDA and CALLBACK support callbacks and lambda expressions add

support LAMBDA and CALLBACK support callbacks and lambda expressions add

2006-06-22  Jürg Billeter  <j@bitron.ch>

	* vala/scanner.l: support LAMBDA and CALLBACK
	* vala/parser.y: support callbacks and lambda expressions
	* vala/valacodevisitor.vala: add visit methods for callbacks and lambda
	  expressions
	* vala/valasymbolbuilder.vala: use non-null parameter types, support
	  callbacks
	* vala/valasemanticanalyzer.vala: partially support interface methods,
	  support callback invocations
	* vala/valamemorymanager.vala: support callback invocations
	* vala/valacodegenerator.vala: partially support interface methods
	* vala/valacallback.vala: initial implementation
	* vala/valacodenode.vala: replace public fields by properties
	* vala/valaexpression.vala: add expected_type field
	* vala/valainvocationexpression.vala: also visit at beginning
	* vala/valalambdaexpression.vala
	* vala/valanamespace.vala: support callbacks
	* vala/vala.h: update
	* vala/Makefile.am: update

svn path=/trunk/; revision=50