return gen.Assign( hv, gen.Cons( cf.pos, elem.type(), elem, hv ));
return gen.Assign( hv, gen.Cons( cf.pos, elementType, elem, hv ));
    Tree prependToHelpVar( Symbol realVar, Tree elem ) {	Tree hv = refHelpVar( realVar );	return gen.Assign( hv, gen.Cons( cf.pos, elem.type(), elem, hv ));	/*	  return cf.Block(pos,	  new Tree [] {	  cf.debugPrintRuntime( "ASSIGN" ),	  gen.Assign( hv, cf.newSeqCons( elem, hv ))	  }, defs.UNIT_TYPE());	*/    }