When trying to compile a Literate Haskell source with a Hadrian-built GHC, compilation fails due to GHC not finding the unlit binary.

How to reproduce:

• Compile GHC using the default Hadrian build.sh script
• Create a minimal LHS file, e.g. echo '> main = return ()' > test.lhs
• Compile the LHS file with the in-place GHC: $GHC_SRC_TREE/_build/stage1/bin/ghc test.lhs

This fails with something like:

ghc: could not execute: $GHC_SRC_TREE/_build/stage1/lib/bin/unlit

However, the unlit binary is in $GHC_SRC_TREE/_build/stage1/bin/unlit. Considering how make-built GHC works fine, this seems to be a misconfiguration in the Hadrian build system.