Digraph.lhs broken?

[Joel Reymont]

/usr/local/bin/ghc -H16m -O  -istage1/utils  -istage1/basicTypes  - 
istage1/types  -istage1/hsSyn  -istage1/prelude  -istage1/rename  - 
istage1/typecheck  -istage1/deSugar  -istage1/coreSyn  -istage1/ 
specialise  -istage1/simplCore  -istage1/stranal  -istage1/stgSyn  - 
istage1/simplStg  -istage1/codeGen  -istage1/main  -istage1/ 
profiling  -istage1/parser  -istage1/cprAnalysis  -istage1/ 
ndpFlatten  -istage1/iface  -istage1/cmm  -istage1/nativeGen  - 
istage1/ghci -Istage1 -DGHCI -DBREAKPOINT -package template-haskell - 
threaded -package readline -DUSE_READLINE -cpp -fglasgow-exts -fno- 
generics -Rghc-timing -I. -IcodeGen -InativeGen -Iparser -package  
unix -ignore-package lang -recomp -Rghc-timing  -H16M '-#include  
"cutils.h"' -i../compat -ignore-package Cabal  -fglasgow-exts   -c  
utils/Digraph.lhs -o stage1/utils/Digraph.o  -ohi stage1/utils/ 
Digraph.hi

utils/Digraph.lhs:133:12:
     Ambiguous occurrence `indices'
     It could refer to either `GHC.Arr.indices', imported from Array  
at utils/Digraph.lhs:43:0-11
                           or `Data.Array.Base.indices', imported  
from Data.Array.ST at utils/Digraph.lhs:48:0-19

utils/Digraph.lhs:139:18:
     Ambiguous occurrence `bounds'
     It could refer to either `GHC.Arr.bounds', imported from Array  
at utils/Digraph.lhs:43:0-11
                           or `Data.Array.Base.bounds', imported from  
Data.Array.ST at utils/Digraph.lhs:48:0-19

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