Fix SD-1782 - Interaction between bookmarks and breakpoints

src/Main/Base/Project/Src/Bookmarks/BookmarkManager.cs

@@ -107,10 +107,12 @@ namespace ICSharpCode.SharpDevelop.Bookmarks
 		
 		public static void ToggleBookmark(ITextEditor editor, int line,
 		                                  Predicate<SDBookmark> canToggle,
-		                                  Func<Location, SDBookmark> bookmarkFactory)
+		                                  Func<Location, SDBookmark> bookmarkFactory,
+		                                  Type bookmarkType)
 		{
 			foreach (SDBookmark bookmark in GetBookmarks(new FileName(editor.FileName))) {
-				if (canToggle(bookmark) && bookmark.LineNumber == line) {
+				if (canToggle(bookmark) && bookmark.LineNumber == line && 
+				    bookmark.GetType().UnderlyingSystemType == bookmarkType) {
 					BookmarkManager.RemoveMark(bookmark);
 					return;
 				}

src/Main/Base/Project/Src/Bookmarks/Commands/MenuCommands.cs

@@ -42,7 +42,8 @@ namespace ICSharpCode.SharpDevelop.Bookmarks
 		{
 			BookmarkManager.ToggleBookmark(editor, editor.Caret.Line, 
 			                               b => b.CanToggle,
-			                               location => new SDBookmark(editor.FileName, location));
+			                               location => new SDBookmark(editor.FileName, location),
+			                               typeof(SDBookmark));
 		}
 	}
 	

src/Main/Base/Project/Src/Services/Debugger/DebuggerService.cs

@@ -227,7 +227,8 @@ namespace ICSharpCode.SharpDevelop.Debugging
 			BookmarkManager.ToggleBookmark(
 				editor, lineNumber,
 				b => b.CanToggle && b is BreakpointBookmark,
-				location => new BreakpointBookmark(editor.FileName, location, BreakpointAction.Break, "", ""));
+				location => new BreakpointBookmark(editor.FileName, location, BreakpointAction.Break, "", ""),
+				typeof(BreakpointBookmark));
 		}
 		
 		/* TODO: reimplement this stuff