Fix Instantiator::not_self_match
Fix Instantiator::not_self_match

Add Defined* nodes and Define link as not self match as they get
transformed by execution or have side effects.

Also don't forget to set _needless_quotation in case of a not self
match node.

rTreutlein/atomspace,rTreutlein/atomspace,rTreutlein/atomspace,AmeBel/atomspace,AmeBel/atomspace,AmeBel/atomspace,rTreutlein/atomspace,AmeBel/atomspace,rTreutlein/atomspace,AmeBel/atomspace