Remove dead code: Sugar.Convert.Infer.exprStoredGuid
Remove dead code: Sugar.Convert.Infer.exprIRef
Move Sugar.Convert.Infer.replaceWith -> Sugar.Internal.replaceWith
Move Sugar.Convert.Infer.plIRef to where its used
Move Sugar.Convert.Infer.plData to where its used
Remove dead code: Sugar.Convert.Infer.exprInferred