Fix remaining acceptance tests to be V3-compatible

examples/acceptance_tests/036/validators/spend.ak

@@ -1,29 +1,33 @@
-use aiken/dict
-use aiken/list
-use aiken/transaction.{Output, OutputReference, ScriptContext}
-use aiken/transaction/value.{PolicyId}
+use aiken/collection/dict
+use aiken/collection/list
+use cardano/assets.{PolicyId}
+use cardano/transaction.{Output, OutputReference, Transaction}
 
 const my_policy_id: PolicyId = #"0000000000"
 
 pub fn has_policy_id(self: Output, policy_id: PolicyId) -> Bool {
   self.value
-    |> value.tokens(policy_id)
+    |> assets.tokens(policy_id)
     |> dict.is_empty
     |> not
 }
 
 validator foo {
-  spend(_datum: Data, _redeemer: Data, o_ref: Data, tx: Transaction) -> Bool {
-    ctx.transaction.outputs
+  spend(_datum: Option<Data>, _redeemer: Data, _o_ref: Data, self: Transaction) {
+    self.outputs
       |> list.any(has_policy_id(_, my_policy_id))
   }
+
+  else(_) {
+    fail
+  }
 }
 
 validator bar(output_reference: OutputReference) {
-  mint(_redeemer: Void, _policy_id: Data, tx: Transaction) -> Bool {
+  mint(_redeemer: Void, _policy_id, self: Transaction) {
     when
       list.find(
-        ctx.transaction.inputs,
+        self.inputs,
         fn(input) { input.output_reference == output_reference },
       )
     is {
@@ -31,4 +35,8 @@ validator bar(output_reference: OutputReference) {
       None -> False
     }
   }
+
+  else(_) {
+    fail
+  }
 }