GHCi segfault
Can reproduce with 9.14.1/master
I suspect it's a missing/wrong stack check.
run with `ghc -e main -fno-unoptimized-core-for-interpreter -O crash.hs `
```haskell
{-# LANGUAGE BangPatterns #-}
module Main where
go :: Int -> Double -> Double
go 0 !acc = acc
go n !acc = go (n - 1) (acc + 1.0)
result :: Double
result = go 100000 0.0
main :: IO ()
main = print result
```
issue