Extract the pre-decl pragma parsing to its own module (#2428)

* actual initial qualify imported names implementation

* renamed and added tests for QualifyImportedNames plugin

* fix backtick and parenthesized operators not being qualified correctly

* add tests, and remove logging

* add license, readme, and demo

* remove old demo, add slightly better demo

* remove old mp4 demo, add slightly gif demo

* update readme to use demo

* readme typo

* slight rewording of readme

* slight rewording of readme 2

* remove Demo header from readme

* don't need ShakeExtras and remove some more logging stuff

* hopefully fix ghc 9 differences, rename plugin cabal file

* forgot comma on module re-export

* minimize imports

* fix Hashmap import for ghc <= 8.8, remove unused extension pragmas

* fix hls-qualify-imported-names ghcide bound

* add test suite to CI

* add more tests for qualify imported names plugin

* change ghcide bound to match what @hololeap is doing

* add qualify imported names to feature list

* add demo, readme, test files, test hie.yaml to extra source files

* extract pragma comment predecl parser to its own module, remove dead code, rename NextPragma to NextPragmaInfo, add getNextPragmaInfo function

* add Pragmas.hs to hlint.yaml to allow CPP extension

Co-authored-by: Javier Neira <atreyu.bbb@gmail.com>

Author: eddiemundo

ghcide/.hlint.yaml

@@ -112,6 +112,7 @@
     - Development.IDE.Spans.Documentation
     - Development.IDE.Spans.Common
     - Development.IDE.Spans.AtPoint
+    - Development.IDE.Spans.Pragmas
     - Development.IDE.Plugin.CodeAction
     - Development.IDE.Plugin.Completions
     - Development.IDE.Plugin.Completions.Logic

ghcide/ghcide.cabal

@@ -186,6 +186,7 @@ library
         Development.IDE.Spans.Documentation
         Development.IDE.Spans.AtPoint
         Development.IDE.Spans.LocalBindings
+        Development.IDE.Spans.Pragmas
         Development.IDE.Types.Diagnostics
         Development.IDE.Types.Exports
         Development.IDE.Types.HscEnvEq