Error reporting on source files got worse in #2663

[leonschoorl]

PR #2663 changed the error reporting on source files from:

SyntaxError.hs:1:20: error: [GHC-58481] parse error on input ‘here’
  |
1 | module SyntaxError here
  |                    ^^^^

to:

<no location info>: error:
    Other error:
    Failed to load module 'SyntaxError.hs'.
    
    Tried to load it from precompiled sources, error was:
    
      <no location info>: error:
          Could not find module `SyntaxError.hs'
          Use -v (or `:set -v` in ghci) to see a list of the files searched for.
    
    Tried to load it from local sources, error was:
    
      SyntaxError.hs:1:20: error: [GHC-58481] parse error on input `here'

It would be nice if we could:

1. restore the prettier errors we had before
2. hide the part about precompiled sources when it doesn't apply