GHC API `runStmt` overrides qualified import of `it` variable

The runStmt function in InteractiveEval creates an it variable storing the last result. However, this variable somehow shadows qualified variables with the name it. For instance, importing Test.Hspec, running any statement, and then trying to use Test.Hspec.it (qualified) results in an "out of scope" error.

The following small program demonstrates this:

import GHC
import GhcMonad
import Outputable
import GHC.Paths

main = runGhc (Just libdir) $ do
  flags <- getSessionDynFlags
  setSessionDynFlags (flags{ hscTarget = HscInterpreted, ghcLink = LinkInMemory})
  imps <- mapM parseImportDecl ["import Prelude", "import Test.Hspec"]
  setContext (map IIDecl imps)

  -- With the next line, you get an "Not in scope" exception.
  -- If you comment out this runStmt, it runs without error and prints the type.
  runStmt "3" RunToCompletion

  exprType "Test.Hspec.it" >>= (liftIO . putStrLn . showPpr flags)

GHCi somehow avoids this, but I have no idea how and could not figure it out from the sources.

What's going on?

Trac metadata

Trac field	Value
Version	7.6.3
Type	Bug
TypeOfFailure	OtherFailure
Priority	normal
Resolution	Unresolved
Component	GHC API
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