Add different output formats

crates/compiler/tests/assets/array_one_element/main.sol

@@ -7,7 +7,10 @@ pragma solidity >=0.6.9;
 import "./callable.sol";
 
 contract Main {
-    function main(uint[1] calldata p1, Callable callable) public returns(uint) {
+    function main(
+        uint[1] calldata p1,
+        Callable callable
+    ) public pure returns (uint) {
         return callable.f(p1);
     }
 }