Add IDependencyMap to parameter preconditions

src/Discord.Net.Commands/Attributes/ParameterPreconditionAttribute.cs

@@ -6,6 +6,6 @@ namespace Discord.Commands
     [AttributeUsage(AttributeTargets.Parameter, AllowMultiple = true, Inherited = true)]
     public abstract class ParameterPreconditionAttribute : Attribute
     {
-        public abstract Task<PreconditionResult> CheckPermissions(CommandContext context, ParameterInfo parameter, object value);
+        public abstract Task<PreconditionResult> CheckPermissions(CommandContext context, ParameterInfo parameter, object value, IDependencyMap map);
     }
 }

src/Discord.Net.Commands/Info/ParameterInfo.cs

@@ -53,7 +53,7 @@ namespace Discord.Commands
 
             foreach (var precondition in Preconditions)
             {
-                var result = await precondition.CheckPermissions(context, this, args[position]).ConfigureAwait(false);
+                var result = await precondition.CheckPermissions(context, this, args[position], map).ConfigureAwait(false);
                 if (!result.IsSuccess)
                     return result;
             }