Update test case

test/contracts/tuple_match.aes

@@ -3,34 +3,34 @@ contract TuplesMatch =
   entrypoint tuplify3() = (t) => switch(t)
     (x, y, z) => 3
 
-  entrypoint fst(p : (int, string)) =
+  entrypoint fst(p : int * string) =
     switch(p)
       (x, y) => x
-  entrypoint fst'(p : (int, string)) =
+  entrypoint fst'(p : int * string) =
     switch(p)
       (x, _) => x
-  entrypoint snd(p : (int, string)) =
+  entrypoint snd(p : int * string) =
     switch(p)
       (x, y) => y
-  entrypoint snd'(p : (int, string)) =
+  entrypoint snd'(p : int * string) =
     switch(p)
       (_, y) => y
   entrypoint sum(p) =
     switch(p)
       (x, y) => x + y
-  entrypoint swap(p : (int, string)) =
+  entrypoint swap(p : int * string) =
     switch(p)
       (x, y) => (y, x)
-  entrypoint id(p : (int, int, string)) =
+  entrypoint id(p : int * int * string) =
     switch(p)
       (x, y, z) => (x, y, z)
-  entrypoint nest(p : ((int, int), string)) =
+  entrypoint nest(p : (int * int) * string) =
     switch(p)
       (xy, z) => switch(xy) (x, y) => (x, y, z)
-  entrypoint deep(p : ((int, int), (int, int))) =
+  entrypoint deep(p : (int * int) * (int * int)) =
     switch(p)
       ((x, y), (z, w)) => (x, y, z, w)
-  entrypoint deep_sum(p : ((int, int), (int, int))) =
+  entrypoint deep_sum(p : (int * int) * (int * int)) =
     switch(p)
       ((x, y), (z, w)) => x + y + z + w