new test cases for MultiWayIf w/ layout

testsuite/tests/parser/should_run/ParserMultiWayIf.hs

@@ -7,9 +7,14 @@ x1 = if | x < 10 -> "< 10" | otherwise -> ""
 x2 = if | x < 10 -> "< 10"
         | otherwise -> ""
 x3 = if | x < 10 -> "< 10"
-   | otherwise -> ""
+        | otherwise -> ""
 x4 = if | True -> "yes"
 x5 = if | True -> if | False -> 1 | True -> 2
 
-main = print $ x5 == 2
+x6 = if | x < 10 -> if | True -> "yes"
+                       | False -> "no"
+        | otherwise -> "maybe"
+
+x7 = (if | True -> 0)
 
+main = print $ x5 == 2 && x6 == "maybe" && x7 == 0