Fixed Forum-31266: Intercepting FileIOPermission deny exception.

git-svn-id: svn://svn.sharpdevelop.net/sharpdevelop/trunk@6254 1ccf3a8d-04fe-1044-b7c0-cef0b8235c61

src/AddIns/Debugger/Debugger.Core/Thread.cs

@@ -223,6 +223,10 @@ namespace Debugger
 				// 0x80131C33: Interception of the current exception is not legal
 				if ((uint)e.ErrorCode == 0x80131C33)
 					return false;
+				// 0x80004005: Error HRESULT E_FAIL has been returned from a call to a COM component.
+				// Use this to reproduce: new FileIOPermission(PermissionState.Unrestricted).Deny();
+				if ((uint)e.ErrorCode == 0x80004005)
+					return false;
 				throw;
 			} catch (ArgumentException) {
 				// May happen in release code with does not have any symbols