Fix modification exception in setBreakpoints.

Author: miniwolf

Changelog.txt

@@ -6,6 +6,10 @@ Git: https://github.com/Unity-Technologies/vscode-unity-debug
 Changes
 -------
 
+2.4.1
+=====
+ - Fix modification exception when setting breakpoints.
+
 2.4.0
 =====
  - Added support for attaching individual unity processes by use of commands.

UnityDebug/UnityDebugSession.cs

@@ -192,7 +192,7 @@ public override void Initialize(Response response, dynamic args)
 				supportsSetVariable = true,
 
 				// This debug adapter does not support exception breakpoint filters
-				exceptionBreakpointFilters = new dynamic[0]
+				exceptionBreakpointFilters = new ExceptionBreakpointsFilter[0]
 			});
 
 			// Mono Debug is ready to accept breakpoints immediately
@@ -456,7 +456,7 @@ public override void SetBreakpoints(Response response, dynamic args)
 			SourceBreakpoint[] newBreakpoints = getBreakpoints(args, "breakpoints");
 			var lines = newBreakpoints.Select(bp => bp.line);
 			var breakpointsToRemove = breakpoints.Where(bp => !lines.Contains(bp.line)).ToArray();
-			foreach (Breakpoint breakpoint in _session.Breakpoints)
+			foreach (Breakpoint breakpoint in _session.Breakpoints.GetBreakpoints())
 			{
 				if (breakpointsToRemove.Any(bp => bp.line == breakpoint.Line))
 				{

package.json

@@ -1,7 +1,7 @@
 {
   "name": "unity-debug",
   "displayName": "Debugger for Unity",
-  "version": "2.4.0",
+  "version": "2.4.1",
   "publisher": "Unity",
   "description": "Unity debugger extension",
   "engines": {