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This fixes a `find_tycon` panic when constructing a record pattern synonym when `DisambiguateRecordFields` (turned on by `RecordWildCards`) is enabled. The handling of record wild cards in such constructions isn't completely satisfactory, but doing better will require the `Parent` type to be more informative, as I'll explain on #11228. Test Plan: New test patsyn/should_compile/T11283.hs Reviewers: mpickering, austin, bgamari Reviewed By: bgamari Subscribers: thomie Differential Revision: https://phabricator.haskell.org/D1695 GHC Trac Issues: #11283
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