Temporary mark 'pure' function as 'view' only

due to sc-forks/solidity-coverage#111 (comment)

contracts/Resolver.sol

@@ -6,7 +6,7 @@ import "../lib/dappsys/auth.sol";
 contract Resolver is DSAuth {
   struct Pointer { address destination; uint outsize; }
   mapping (bytes4 => Pointer) public pointers;
-
+  event Confirmation(address sender);
   function register(string signature, address destination, uint outsize) public
   auth
   {
@@ -33,7 +33,9 @@ contract Resolver is DSAuth {
     }
   }
 
-  function stringToSig(string signature) public pure returns(bytes4) {
+  //TODO: mark this function as `pure` when SC is fixed https://github.com/sc-forks/solidity-coverage/issues/111#issuecomment-335382282
+  function stringToSig(string signature) public view returns(bytes4) {
+    Confirmation(msg.sender);
     return bytes4(keccak256(signature));
   }
 }