Merge MatchFixity and HsMatchContext

Summary:
MatchFixity was introduced to facilitate use of API Annotations.

HsMatchContext does the same thing with more detail, but is chased
through all over the place to provide context when processing a Match.

Since we already have MatchFixity in the Match, it may as well provide
the full context.

updates submodule haddock

Test Plan: ./validate

Reviewers: austin, goldfire, bgamari

Subscribers: thomie, mpickering

Differential Revision: https://phabricator.haskell.org/D2271

GHC Trac Issues: #12105

(cherry picked from commit 306ecad591951521ac3f5888ca8be85bf749d271)

1 files changed, 0 insertions, 0 deletions

diff --git a/utils/haddock b/utils/haddock
-Subproject 375a8d8c7203857863992483df9f9d24ec93eca
+Subproject 8d47c8b733a0b9406d99a97c7eaeba3d6b51ec7