invalidate stacks on setNextStatement

Author: ArseniiCherniaev

Mono.Debugging.Soft/SoftDebuggerSession.cs

@@ -880,6 +880,8 @@ protected override void OnSetNextStatement (long threadId, int ilOffset)
 
 			try {
 				thread.SetIP (location);
+				StackVersion++;
+				RaiseStopEvent ();
 			} catch (ArgumentException) {
 				throw new NotSupportedException ();
 			}

Mono.Debugging/Mono.Debugging.Client/DebuggerSession.cs

@@ -960,7 +960,13 @@ public Mono.Debugging.Evaluation.ExpressionEvaluator GetEvaluator (StackFrame fr
 			return result.Evaluator;
 		}
 
-		
+		protected void RaiseStopEvent ()
+		{
+			EventHandler<TargetEventArgs> targetEvent = TargetEvent;
+			if (targetEvent != null)
+				targetEvent (this, new TargetEventArgs (TargetEventType.TargetStopped));
+		}
+
 		/// <summary>
 		/// Called when an expression needs to be resolved
 		/// </summary>