Fix xt/type-graph.t test, close #3001

* Telemetry module is needed to use telemetry related types
* Types whitout 'mro' method support has been whitelisted
* UInt was missing
* X::Scheduler::CueInNaNSeconds mro fixed

Author: antoniogamiz

type-graph.txt

@@ -133,6 +133,7 @@ class Int                           is Cool        does Real
 class Num                           is Cool        does Real
 class Complex                       is Cool        does Numeric
 class int                           is Int
+class UInt
 class atomicint                     is Int
 
 [Basic]
@@ -355,7 +356,7 @@ role  X::Temporal                   is Exception
 class X::Temporal::InvalidFormat    does X::Temporal
 class X::DateTime::InvalidDeltaUnit does X::Temporal
 class X::DateTime::TimezoneClash    does X::Temporal
-class X::Scheduler::CueInNaNSeconds
+class X::Scheduler::CueInNaNSeconds is Exception
 
 [Exceptions]
 # Exceptions: Composition

xt/type-graph.t

@@ -4,13 +4,15 @@ use v6;
 
 use Test;
 use Perl6::TypeGraph;
+use Telemetry;
 
 my $t = Perl6::TypeGraph.new-from-file('type-graph.txt');
 
 for $t.sorted -> $type {
     next if $type.name.index('Metamodel').defined || $type.name eq 'PROCESS';
     next if $type.packagetype eq 'role'|'module';
-    next if $type.name eq 'Failure';
+    # these types does not support mro => whitelisted
+    next if $type.name eq any(<Failure MOP Routine::WrapHandle Encoding UInt>);
     try {
         my $got = ~$type.mro;
         my $expected = ~::($type).^mro.map: *.^name;