2009-01-05 Sebastien Pouliot <sebastien at ximian.com>

2009-01-05  Sebastien Pouliot  <sebastien at ximian.com>

	* CodeReader.cs: Do not call VisitVariableDefinitionCollection
	unless LocalVarToken is different from zero.
	* CodeWriter.cs: Use HasVariables and HasExceptionHandlers.
	Write zero, not TokenType.Signature, for LocalVarToken if no
	variable is defined. That should fix the problem with unsign
	* Mono.Cecil.Cil/MethodBody.cs: Add HasExceptionHandlers,
	HasVariables and HasScopes to avoid creating empty collections
	inside Cecil. There is no HasInstruction because there's always
	something if MethodDefinition.HasBody is true (i.e. a MethodBody
	exists). [re-apply r1222198]

git-svn-id: svn+ssh://mono-cvs.ximian.com/source/trunk/mcs@122458 e3ebcda4-bce8-0310-ba0a-eca2169e7518