Send stopDebugger during REPL if no longer debugging

Author: andyleejordan

src/PowerShellEditorServices/Services/PowerShell/Host/PsesInternalHost.cs

@@ -1,4 +1,4 @@
-// Copyright (c) Microsoft Corporation.
+// Copyright (c) Microsoft Corporation.
 // Licensed under the MIT License.
 
 using System;
@@ -601,6 +601,14 @@ private void DoOneRepl(CancellationToken cancellationToken)
                 return;
             }
 
+            // If we started the debug server, then on each REPL we need to check if we're still
+            // actively debugging, and if not, stop the server.
+            if (DebugContext.OwnsDebugServerState && !CurrentRunspace.Runspace.Debugger.InBreakpoint)
+            {
+                DebugContext.OwnsDebugServerState = false;
+                _languageServer?.SendNotification("powerShell/stopDebugger");
+            }
+
             // When a task must run in the foreground, we cancel out of the idle loop and return to the top level.
             // At that point, we would normally run a REPL, but we need to immediately execute the task.
             // So we set _skipNextPrompt to do that.