feat(haskell): tweak highlights

* add cases for `qualified_variable`

* add function defined in terms of composition

queries/haskell/highlights.scm

@@ -173,6 +173,7 @@
      (exp_name 
        [(constructor)
         (variable)
+        (qualified_variable)
        ]))
    (quasiquote)
    ((exp_name) . (operator))
@@ -186,6 +187,7 @@
      (exp_name 
        [(constructor)
         (variable)
+        (qualified_variable)
        ]))
    (quasiquote)
    ((exp_name) . (operator))
@@ -293,6 +295,12 @@
  ])
  (#any-of? @_op "." ">>>" "***" ">=>" "<=<" ))
         
+; function defined in terms of a function composition
+(function 
+  name: (variable) @function
+  rhs: (exp_infix (_) . (operator) @_op . (_)
+  (#any-of? @_op "." ">>>" "***" ">=>" "<=<")))
+
 (exp_apply (exp_name 
   [
     ((variable) @function.call)
@@ -325,7 +333,7 @@
   . (variable) @variable
   . [
      (exp_record)
-     (exp_name (variable))
+     (exp_name [(variable) (qualified_variable)])
      (exp_list)
      (exp_tuple)
      (exp_cond)

tests/query/highlights/haskell/test.hs

@@ -171,6 +171,8 @@ someIOaction = do
       gunc x y = func x $ y + 7
                    -- ^ @variable
                        -- ^ @variable
+      valueFromList = HashSet.fromList []
+      -- ^ @variable
   when foo $ putStrLn $ T.showt =<< bar
  -- ^ @function.call
      -- ^ @variable
@@ -325,3 +327,6 @@ lambdaAlias _ _ _ = undefined
 spec :: Spec
 spec = describe "test ns" $ it "test case" pending
 -- ^ @variable
+
+composed = f . g
+-- ^ @function