Handle AnyError properly

Trust/Extensions/Error.swift

@@ -3,12 +3,13 @@
 import Foundation
 import APIKit
 import JSONRPCKit
+import Result
 
 extension Error {
     var prettyError: String {
         switch self {
-        case let error as LocalizedError:
-            return error.errorDescription ?? "An unknown error occurred."
+        case let error as AnyError:
+            switch error.error {
             case let error as APIKit.SessionTaskError:
                 switch error {
                 case .connectionError(let error):
@@ -25,6 +26,10 @@ extension Error {
                     default: return "Undefined error"
                     }
                 }
+            default: return error.description
+            }
+        case let error as LocalizedError:
+            return error.errorDescription ?? "An unknown error occurred."
         case let error as NSError:
             return error.localizedDescription
         default:
@@ -35,3 +40,4 @@ extension Error {
     var code: Int { return (self as NSError).code }
     var domain: String { return (self as NSError).domain }
 }
+