Make handle-fatal-error a separate structure

scheme/nuit-packages.scm

@@ -1,3 +1,13 @@
+;;; utilities
+
+(define-interface handle-fatal-error-interface
+  (export with-fatal-error-handler*
+	  (with-fatal-error-handler :syntax)))
+
+(define-structure handle-fatal-error handle-fatal-error-interface
+  (open scheme conditions handle)
+  (files handle-fatal-error))
+
 ;;; history data structure
 
 (define-interface history-interface
@@ -278,10 +288,11 @@
 	layout
 	pps
 	history
+        handle-fatal-error
 	;; the following modules are plugins
 	dirlist-view-plugin
 	process-view-plugin
 	standard-command-plugin
         nuit-inspector-plugin)
-  (files nuit-engine
-	 handle-fatal-error))
+  (files nuit-engine))
+