ppr of HsDo

[Alan & Kim Zimmerman]

The pretty printer turns

foo = do
  let x = 1
  Just 5

into

foo
  = do { let x = 1;
         Just 5 }

which does not parse, complaining about "parse error on input ‘Just’"

Is this a parser error or a ppr problem?  I am keen to fix the ppr to
output


foo
  = do let x = 1
       Just 5

but I am not sure if there is a parser bug too.

Alan
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