Fix multiline maps inside case

Author: tonini

elixir-smie.el

@@ -530,7 +530,19 @@
        (smie-rule-parent))
       ((smie-rule-parent-p "[")
        (smie-rule-parent))
-      ))
+      ((smie-rule-parent-p "->")
+       (if (save-excursion
+             (move-end-of-line 1)
+             (looking-back elixir-smie--block-operator-regexp (- (point) 3) t))
+           (smie-rule-parent -2)
+         elixir-smie-indent-basic))
+      ((smie-rule-parent-p ";")
+       (if (save-excursion
+             (move-end-of-line 1)
+             (looking-back elixir-smie--block-operator-regexp (- (point) 3) t))
+           (smie-rule-parent -2)
+         elixir-smie-indent-basic))
+      (t (smie-rule-parent))))
     (`(:after . "{")
      (cond
       ((smie-rule-hanging-p)

test/elixir-mode-indentation-test.el

@@ -1539,9 +1539,7 @@ fn x ->
 end")
 
 (elixir-def-indentation-test case-with-multiline-maps
-                             ; the last key does not align properly in multiline maps
-                             ; https://github.com/elixir-lang/emacs-elixir/issues/297
-                             (:expected-result :failed :tags '(indentation))
+                             (:tags '(indentation))
 "case statement do
   %{\"foo\" => \"foo\",
      \"baz\" => \"baz\"} ->