-rnOverLit (HsIntegral i from_integer)
- = lookupOccRn from_integer `thenRn` \ from_integer' ->
- (if inIntRange i then
- returnRn emptyFVs
- else
- lookupOrigNames [plusInteger_RDR, timesInteger_RDR]
- ) `thenRn` \ ns ->
- returnRn (HsIntegral i from_integer', ns `addOneFV` from_integer')
-
-rnOverLit (HsFractional i n)
- = lookupOccRn n `thenRn` \ n' ->
- lookupOrigNames [ratioDataCon_RDR, plusInteger_RDR, timesInteger_RDR] `thenRn` \ ns' ->
+rnOverLit (HsIntegral i)
+ | inIntRange i
+ = returnRn (HsIntegral i, unitFV fromIntegerName)
+ | otherwise
+ = lookupOrigNames [fromInteger_RDR, plusInteger_RDR, timesInteger_RDR] `thenRn` \ ns ->
+ -- Big integers are built, using + and *, out of small integers
+ -- [No particular reason why we use fromIntegerName in one case can
+ -- fromInteger_RDR in the other; but plusInteger_RDR means we
+ -- can get away without plusIntegerName altogether.]
+ returnRn (HsIntegral i, ns)
+
+rnOverLit (HsFractional i)
+ = lookupOrigNames [fromRational_RDR, ratioDataCon_RDR,
+ plusInteger_RDR, timesInteger_RDR] `thenRn` \ ns ->