Fix some tests. Remove optimization of singleton tuples

test/contracts/clone.aes

@@ -5,13 +5,15 @@ contract interface HigherOrderState =
   stateful entrypoint inc : int => unit
 
 contract interface LowerDisorderAnarchy =
-  entrypoint init : int => void
+  entrypoint init : (int) => void
 
 
 main contract C =
+  // both `s` and `l` should be of type `HigherOrderState` in this test
   stateful entrypoint run_clone(s : HigherOrderState, l : LowerDisorderAnarchy) : HigherOrderState =
     let s1 = Chain.clone(ref=s)
     let Some(s2) = Chain.clone(ref=s, protected=true)
+    let None = Chain.clone(ref=s, protected=true, gas=1)
     let None = Chain.clone(ref=l, protected=true, 123)
     let s3 = Chain.clone(ref=s1)
     require(s1.apply(2137) == 2137, "APPLY_S1_0")

test/contracts/clone_simple.aes

@@ -2,6 +2,6 @@ contract interface I =
   entrypoint init : () => void
 
 contract C =
-  entrypoint f(i : I) =
+  stateful entrypoint f(i : I) =
     let Some(c1) = Chain.clone(ref=i, protected = true)
     2

test/contracts/test.aes

@@ -1,28 +1,14 @@
-contract T =
-  entrypoint f(x, y) = 3
-main contract IntegerAdderFactory =
-  stateful payable entrypoint calculateSomething(x, t) =
-//    let t = Chain.create(value = 5555) : T
-    t.f(protected = true, gas = 999999999, value = 777777, 111, 222)
-//    t.f()
+include "List.aes"
 
-/* 
-contract IntegerAdder =
-  entrypoint init() = ()
-  entrypoint addIntegers(x, y) = x + y
-
-contract IntegerAdderHolder =
-  type state = IntegerAdder
-  entrypoint init() = Chain.create() : IntegerAdder
+contract IntegerHolder =
+  type state = int
+  entrypoint init(x) = x
   entrypoint get() = state
 
-namespace IntegerAdderFactory =
-  function new() =
-    let i = Chain.create() : IntegerAdderHolder
-    i.get()
-
-main contract EnterpriseContract =
-  entrypoint calculateSomething(x) =
-    let adder = IntegerAdderFactory.new()
-    adder.addIntegers(x, 2137)
-*/
+main contract IntegerCollection =
+  record state = {template: IntegerHolder, payload: list(IntegerHolder)}
+  stateful entrypoint init() = {template = Chain.create(0), payload = []}
+  stateful entrypoint add(x) =
+    put(state{payload @ p = Chain.clone(ref=state.template, x) :: p})
+    x
+  entrypoint sum() = List.sum(List.map((h) => h.get(), state.payload))