Refactor file/module structure again again

Some more cases that still produced broken layout on interaction
with do-blocks were fixed.

data/12-features/minimize-parentheses.blt

@@ -1,27 +0,0 @@
-#group feature/minimize-parens
-
-#golden minimize parens basic test
--- brittany { lconfig_operatorParenthesisRefactorMode: PRMMinimize }
-func = func (abc) (def)
-#expected
--- brittany { lconfig_operatorParenthesisRefactorMode: PRMMinimize }
-func = func abc def
-
-#test minimize parens test that it keep necessary parens
--- brittany { lconfig_operatorParenthesisRefactorMode: PRMMinimize }
-func = func (abc False) ("asd" ++ "def")
-
-
-#golden minimize nested parens 1
--- brittany { lconfig_operatorParenthesisRefactorMode: PRMMinimize }
-func = func ((((((((nested))))))))
-#expected
--- brittany { lconfig_operatorParenthesisRefactorMode: PRMMinimize }
-func = func nested
-
-#golden minimize nested parens 2
--- brittany { lconfig_operatorParenthesisRefactorMode: PRMMinimize }
-func = func ((((((((nested + expression))))))))
-#expected
--- brittany { lconfig_operatorParenthesisRefactorMode: PRMMinimize }
-func = func (nested + expression)

data/15-regressions.blt

@@ -1060,6 +1060,13 @@ func = do
     )
     `shouldReturn` thing
 
+#golden minimize parens basic test
+-- brittany { lconfig_operatorParenthesisRefactorMode: PRMMinimize }
+func = func (abc) (def)
+#expected
+-- brittany { lconfig_operatorParenthesisRefactorMode: PRMMinimize }
+func = func abc def
+
 #test wandering comment at end of datadecl
 data ReformatParenMode
   = ReformatParenModeKeep  -- don't modify parens at all

source/library/Language/Haskell/Brittany/Internal/Components/OpTree.hs

@@ -184,14 +184,9 @@ addAllParens topLevelParen = \case
 
 remSuperfluousParens :: Int -> OpTree -> OpTree
 remSuperfluousParens outerFixity = \case
-  x@OpLeaf{} -> x
-  OpUnknown _ locO locC c@(OpLeaf doc) [] | isLit doc ->
-    OpUnknown NoParen locO locC c []
-  OpUnknown _ locO locC c@(OpUnknown ParenWithSpace _ _ _ _) [] ->
-    OpUnknown NoParen locO locC (remSuperfluousParens 11 c) []
-  OpUnknown _ locO locC c@(OpUnknown ParenNoSpace _ _ _ _) [] ->
-    OpUnknown NoParen locO locC (remSuperfluousParens 11 c) []
-  x@OpUnknown{} -> x
+  x@OpLeaf{}                 -> x
+  OpUnknown _ locO locC c [] -> OpUnknown NoParen locO locC c []
+  x@OpUnknown{}              -> x
   OpKnown paren locO locC fixity c cs ->
     OpKnown
       -- We do not support removing superfluous parens around
@@ -205,22 +200,7 @@ remSuperfluousParens outerFixity = \case
       fixity
       (remSuperfluousParens (fixLevel fixity) c)
       [ (op, remSuperfluousParens (fixLevel fixity) tree) | (op, tree) <- cs ]
- where
-  fixLevel (Fixity _ i _) = i
-  isLit = \case
-    (_, BDFlushCommentsPrior _ x ) -> isLit x
-    (_, BDFlushCommentsPost _ _ x) -> isLit x
-    (_, BDQueueComments _ x      ) -> isLit x
-    (_, BDEntryDelta _ x         ) -> isLit x
-    (_, BDForceAlt _ x           ) -> isLit x
-    (_, BDDebug _ x              ) -> isLit x
-    (_, BDAddBaseY _ x           ) -> isLit x
-    (_, BDBaseYPushCur x         ) -> isLit x
-    (_, BDIndentLevelPushCur x   ) -> isLit x
-    (_, BDIndentLevelPop x       ) -> isLit x
-    (_, BDLit{}                  ) -> True
-    _                              -> False
-
+  where fixLevel (Fixity _ i _) = i
 
 hardcodedFixity :: Bool -> String -> Maybe Fixity
 hardcodedFixity allowUnqualify = \case

source/library/Language/Haskell/Brittany/Internal/ToBriDoc/OpTree.hs

@@ -165,8 +165,8 @@ processOpTree (unknownTree, hasComments) = do
         PRMMinimize -> remSuperfluousParens 11 balancedTree
         PRMMaximize -> addAllParens NoParen balancedTree
   -- tellDebugMess $ displayOpTree unknownTree
-  -- tellDebugMess $ displayOpTree balancedTree
-  -- tellDebugMess $ displayOpTree processedTree
+  tellDebugMess $ displayOpTree balancedTree
+  tellDebugMess $ displayOpTree processedTree
   layoutOpTree (not hasComments) processedTree
 
 layoutOpTree :: Bool -> OpTree -> ToBriDocM BriDocNumbered