Narrow scope of special-case for unqualified printing of names in core libraries

Commit 547c597112954353cef7157cb0a389bc4f6303eb modifies the
pretty-printer to render names from a set of core packages (`base`,
`ghc-prim`, `template-haskell`) as unqualified. The idea here was that
many of these names typically are not in scope but are well-known by the
user and therefore qualification merely introduces noise.

This, however, is a very large hammer and potentially breaks any
consumer who relies on parsing GHC output (hence #11208). This commit
partially reverts this change, now only printing `Constraint` (which
appears quite often in errors) as unqualified.

Fixes #11208.

Updates tests in `array` submodule.

Test Plan: validate

Reviewers: hvr, thomie, austin

Subscribers: thomie

Differential Revision: https://phabricator.haskell.org/D1619

GHC Trac Issues: #11208

1 files changed, 8 insertions, 8 deletions

diff --git a/testsuite/tests/ghci/scripts/ghci023.stdout b/testsuite/tests/ghci/scripts/ghci023.stdout
index 61a859a73c..334b67d9fe 100644
--- a/testsuite/tests/ghci/scripts/ghci023.stdout
+++ b/testsuite/tests/ghci/scripts/ghci023.stdout
@@ -3,15 +3,15 @@
 (1,2,3)
 -- layout rule instead of explicit braces and semicolons works too
 (1,2,3)
-catMaybes :: [Maybe a] -> [a]
-fromJust :: Maybe a -> a
-fromMaybe :: a -> Maybe a -> a
-isJust :: Maybe a -> Bool
-isNothing :: Maybe a -> Bool
-listToMaybe :: [a] -> Maybe a
-mapMaybe :: (a -> Maybe b) -> [a] -> [b]
+Data.Maybe.catMaybes :: [Maybe a] -> [a]
+Data.Maybe.fromJust :: Maybe a -> a
+Data.Maybe.fromMaybe :: a -> Maybe a -> a
+Data.Maybe.isJust :: Maybe a -> Bool
+Data.Maybe.isNothing :: Maybe a -> Bool
+Data.Maybe.listToMaybe :: [a] -> Maybe a
+Data.Maybe.mapMaybe :: (a -> Maybe b) -> [a] -> [b]
 maybe :: b -> (a -> b) -> Maybe a -> b
-maybeToList :: Maybe a -> [a]
+Data.Maybe.maybeToList :: Maybe a -> [a]
 data Maybe a = Nothing | Just a
 -- via readFile
 (True,False)