Backported r5292 - Disable steppers before detach

git-svn-id: svn://svn.sharpdevelop.net/sharpdevelop/branches/3.0@5313 1ccf3a8d-04fe-1044-b7c0-cef0b8235c61

src/AddIns/Misc/Debugger/Debugger.Core/Project/Src/Control/Process-StateControl.cs

@@ -197,6 +197,14 @@ namespace Debugger
 				corProcess.Stop(uint.MaxValue);
 				NotifyPaused(PausedReason.ForcedBreak);
 			}
+			// This is necessary for detach
+			foreach(Thread t in this.Threads) {
+				foreach(Stepper s in t.Steppers) {
+					if (s.CorStepper.IsActive == 1) {
+						s.CorStepper.Deactivate();
+					}
+				}
+			}
 			corProcess.Detach();
 			NotifyHasExited();			
 		}

src/AddIns/Misc/Debugger/Debugger.Core/Project/Src/Control/Stepper.cs

@@ -25,6 +25,10 @@ namespace Debugger
 		
 		public event EventHandler<StepperEventArgs> StepComplete;
 		
+		public ICorDebugStepper CorStepper {
+			get { return corStepper; }
+		}
+		
 		[Debugger.Tests.Ignore]
 		public Process Process {
 			get { return stackFrame.Process; }