ghci can't load local Prelude module
I have a `Prelude.hs` file which contains
```hs
module Prelude
where
```
If I invoke `ghci` from the same directory, I get
```
Top level:
attempting to use module ‘Prelude’ (./Prelude.hs) which is not loaded
```
Note: `ghc --make` correctly compiles modules that use the local `Prelude.hs`, so I expect `ghci` to handle that case too.
<details><summary>Trac metadata</summary>
| Trac field | Value |
| ---------------------- | ------------ |
| Version | 7.10.1 |
| Type | Bug |
| TypeOfFailure | OtherFailure |
| Priority | normal |
| Resolution | Unresolved |
| Component | GHCi |
| Test case | |
| Differential revisions | |
| BlockedBy | |
| Related | |
| Blocking | |
| CC | |
| Operating system | |
| Architecture | |
</details>
<!-- {"blocked_by":[],"summary":"ghci can't load local Prelude module","status":"New","operating_system":"","component":"GHCi","related":[],"milestone":"","resolution":"Unresolved","owner":{"tag":"Unowned"},"version":"7.10.1","keywords":[],"differentials":[],"test_case":"","architecture":"","cc":[""],"type":"Bug","description":"\r\nI have a `Prelude.hs` file which contains\r\n\r\n{{{#!hs\r\nmodule Prelude\r\nwhere\r\n}}}\r\n\r\nIf I invoke `ghci` from the same directory, I get\r\n\r\n{{{\r\nTop level:\r\n attempting to use module ‘Prelude’ (./Prelude.hs) which is not loaded\r\n}}}\r\n\r\nNote: `ghc --make` correctly compiles modules that use the local `Prelude.hs`, so I expect `ghci` to handle that case too.\r\n","type_of_failure":"OtherFailure","blocking":[]} -->
issue