Result visitor methods should take result as argument

src/spectator/error_result.cr

@@ -7,7 +7,7 @@ module Spectator
   class ErrorResult < FailResult
     # Calls the `error` method on *visitor*.
     def accept(visitor)
-      visitor.error
+      visitor.error(self)
     end
 
     # Calls the `error` method on *visitor*.

src/spectator/fail_result.cr

@@ -17,7 +17,7 @@ module Spectator
 
     # Calls the `failure` method on *visitor*.
     def accept(visitor)
-      visitor.fail
+      visitor.fail(self)
     end
 
     # Calls the `failure` method on *visitor*.

src/spectator/pass_result.cr

@@ -5,7 +5,7 @@ module Spectator
   class PassResult < Result
     # Calls the `pass` method on *visitor*.
     def accept(visitor)
-      visitor.pass
+      visitor.pass(self)
     end
 
     # Calls the `pass` method on *visitor*.

src/spectator/pending_result.cr

@@ -13,7 +13,7 @@ module Spectator
 
     # Calls the `pending` method on the *visitor*.
     def accept(visitor)
-      visitor.pending
+      visitor.pending(self)
     end
 
     # Calls the `pending` method on the *visitor*.

src/spectator/spec/events.cr

@@ -49,22 +49,22 @@ module Spectator
         end
 
         # Invokes the example passed method.
-        def pass
+        def pass(_result)
           @formatter.example_passed(@notification)
         end
 
         # Invokes the example failed method.
-        def fail
+        def fail(_result)
           @formatter.example_failed(@notification)
         end
 
         # Invokes the example error method.
-        def error
+        def error(_result)
           @formatter.example_error(@notification)
         end
 
         # Invokes the example pending method.
-        def pending
+        def pending(_result)
           @formatter.example_pending(@notification)
         end
       end