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, 9 insertions, 8 deletions

diff --git a/testsuite/tests/rename/should_fail/RnStaticPointersFail02.stderr b/testsuite/tests/rename/should_fail/RnStaticPointersFail02.stderr
index de145e789a..e596a51fb3 100644
--- a/testsuite/tests/rename/should_fail/RnStaticPointersFail02.stderr
+++ b/testsuite/tests/rename/should_fail/RnStaticPointersFail02.stderr
@@ -1,8 +1,9 @@
-

-RnStaticPointersFail02.hs:5:5: error:

-    No instance for (Typeable t0) arising from a static form

-    In the expression: static T

-    In an equation for ‘f’: f = static T

-

-RnStaticPointersFail02.hs:5:12: error:

-    Data constructor not in scope: T

+
+RnStaticPointersFail02.hs:5:5: error:
+    • No instance for (Data.Typeable.Internal.Typeable t0)
+        arising from a static form
+    • In the expression: static T
+      In an equation for ‘f’: f = static T
+
+RnStaticPointersFail02.hs:5:12: error:
+    Data constructor not in scope: T