Remove type-ambiguous (fromIntegral 0)::Int, replacing it with just 0

This unnecessary ambiguity has been there for ages, and is now rejected
by -Werror, after fixing #3261

diff --git a/compiler/ghci/ByteCodeAsm.lhs b/compiler/ghci/ByteCodeAsm.lhs
index de85a6b..66a1500 100644 (file)
--- a/compiler/ghci/ByteCodeAsm.lhs
+++ b/compiler/ghci/ByteCodeAsm.lhs
@@ -385,7 +385,7 @@ mkBits findLabel st proto_insns
        literal st (MachLabel fs _ _) = litlabel st fs
        literal st (MachWord w)     = int st (fromIntegral w)
        literal st (MachInt j)      = int st (fromIntegral j)
-       literal st MachNullAddr     = int st (fromIntegral 0)
+       literal st MachNullAddr     = int st 0
        literal st (MachFloat r)    = float st (fromRational r)
        literal st (MachDouble r)   = double st (fromRational r)
        literal st (MachChar c)     = int st (ord c)