Reorganize Set and IntSet Haddocks. (#531)

This moves the Construction section to the top, puts all "construction like"
functions under that heading, and moves Insertion and Deletion under
Construction. Also, moves operators out of their own section and
into the appropriate section, and moves `member` to the top of the Query
section.

[ci skip]

Author: m-renaud

Data/IntSet.hs

@@ -73,32 +73,37 @@ module Data.IntSet (
 #endif
             , Key
 
-            -- * Operators
-            , (\\)
+            -- * Construction
+            , empty
+            , singleton
+            , fromList
+            , fromAscList
+            , fromDistinctAscList
+
+            -- * Insertion
+            , insert
+
+            -- * Deletion
+            , delete
 
             -- * Query
-            , IS.null
-            , size
             , member
             , notMember
             , lookupLT
             , lookupGT
             , lookupLE
             , lookupGE
+            , IS.null
+            , size
             , isSubsetOf
             , isProperSubsetOf
             , disjoint
 
-            -- * Construction
-            , empty
-            , singleton
-            , insert
-            , delete
-
             -- * Combine
             , union
             , unions
             , difference
+            , (\\)
             , intersection
 
             -- * Filter
@@ -135,13 +140,8 @@ module Data.IntSet (
             -- ** List
             , elems
             , toList
-            , fromList
-
-            -- ** Ordered list
             , toAscList
             , toDescList
-            , fromAscList
-            , fromDistinctAscList
 
             -- * Debugging
             , showTree

Data/Set.hs

@@ -72,33 +72,40 @@ module Data.Set (
               Set(..)
 #endif
 
-            -- * Operators
-            , (\\)
+            -- * Construction
+            , empty
+            , singleton
+            , fromList
+            , fromAscList
+            , fromDescList
+            , fromDistinctAscList
+            , fromDistinctDescList
+            , powerSet
+
+            -- * Insertion
+            , insert
+
+            -- * Deletion
+            , delete
 
             -- * Query
-            , S.null
-            , size
             , member
             , notMember
             , lookupLT
             , lookupGT
             , lookupLE
             , lookupGE
+            , S.null
+            , size
             , isSubsetOf
             , isProperSubsetOf
             , disjoint
 
-            -- * Construction
-            , empty
-            , singleton
-            , insert
-            , delete
-            , powerSet
-
             -- * Combine
             , union
             , unions
             , difference
+            , (\\)
             , intersection
             , cartesianProduct
             , disjointUnion
@@ -152,15 +159,8 @@ module Data.Set (
             -- ** List
             , elems
             , toList
-            , fromList
-
-            -- ** Ordered list
             , toAscList
             , toDescList
-            , fromAscList
-            , fromDescList
-            , fromDistinctAscList
-            , fromDistinctDescList
 
             -- * Debugging
             , showTree