Fixed crash in compiler when compiling initialization lists with 'null' as one of the elements


git-svn-id: http://svn.code.sf.net/p/angelscript/code@1993 404ce1b2-830e-0410-a2e2-b09542c77caf
Identity comparison on handle received as parameter by reference wasn't working


git-svn-id: http://svn.code.sf.net/p/angelscript/code@1994 404ce1b2-830e-0410-a2e2-b09542c77caf