-
Simon Peyton Jones authored
If you say ghci> import Foo( T ) ghci> data T = MkT ghci> data T = XXX then the second 'data T' should shadow the first. But the qualified Foo.T should still be available. We really weren't handling this correctly at all, resulting in Trac #8639 and #8628 among others This patch: * Add RdrName.extendGlobalRdrEnv, which does shadowing properly * Change HscTypes.icExtendGblRdrEnv (was badly-named icPlusGblRdrEnv) to use the new function * Change RnNames.extendGobalRdrEnvRn to use the new function * Move gresFrom Avails into RdrName * Better pprGlobalRdrEnv function in RdrName
5dffb4ac