move namespaces from SourceFile to CodeContext

move namespaces from SourceFile to CodeContext

2007-07-17  Juerg Billeter  <j@bitron.ch>

	* vala/parser.y, vala/valaattributeprocessor.vala,
	  vala/valacodecontext.vala, vala/valadatatype.vala,
	  vala/valainterfacewriter.vala, vala/valamemorymanager.vala,
	  vala/valanamespace.vala, vala/valasemanticanalyzer.vala,
	  vala/valasourcefile.vala, vala/valasymbolbuilder.vala,
	  vala/valasymbolresolver.vala, gobject/valacodegenerator.vala,
	  gobject/valacodegeneratorsourcefile.vala, vapigen/valagidlparser.vala,
	  vapigen/valavapigen.vala: move namespaces from SourceFile to
	  CodeContext

svn path=/trunk/; revision=360