Suspend exception when trying to change the timer

src/libraries/System.Private.CoreLib/src/System/Threading/CancellationTokenSource.cs

@@ -398,7 +398,7 @@ public bool TryReset()
                 // If we successfully reset it and it never fired, then we can be sure it won't trigger cancellation.
                 bool reset =
                     _timer is not TimerQueueTimer timer ||
-                    (timer.Change(Timeout.UnsignedInfinite, Timeout.UnsignedInfinite) && !timer._everQueued);
+                    (timer.Change(Timeout.UnsignedInfinite, Timeout.UnsignedInfinite, throwIfDisposed: false) && !timer._everQueued);
 
                 if (reset)
                 {

src/libraries/System.Private.CoreLib/src/System/Threading/Timer.cs

@@ -515,14 +515,14 @@ internal string DisplayString
             }
         }
 
-        internal bool Change(uint dueTime, uint period)
+        internal bool Change(uint dueTime, uint period, bool throwIfDisposed = true)
         {
             bool success;
 
             lock (_associatedTimerQueue)
             {
                 if (_canceled)
-                    throw new ObjectDisposedException(null, SR.ObjectDisposed_Generic);
+                    return throwIfDisposed ? throw new ObjectDisposedException(null, SR.ObjectDisposed_Generic) : false;
 
                 _period = period;