- old code just checked for pointer vs non-pointer.
  Should actually treat CREF and REF types differently
  Overseen in commit be058bec. Only affects develop branch

ENH: improved naming consistency in tmp, refPtr

- also use long-form to check for pointer type instead of the isTmp()
  method. Makes differences between PTR, CREF, REF easier to spot.

STYLE: typeName() for tmp, refPtr is static