[bgen] Make Generator.NamespaceManager and Generator.ns instance members.

src/generator.cs

@@ -838,7 +838,7 @@ public partial class Frameworks {
 public partial class Generator : IMemberGatherer {
 	internal bool IsPublicMode;
 
-	static NamespaceManager ns;
+	NamespaceManager ns;
 	static BindingTouch BindingTouch;
 	static Frameworks Frameworks { get { return BindingTouch.Frameworks; } }
 	public static TypeManager TypeManager { get { return BindingTouch.TypeManager; } }
@@ -905,7 +905,7 @@ public partial class Generator : IMemberGatherer {
 	StreamWriter sw, m;
 	int indent;
 
-	static public NamespaceManager NamespaceManager {
+	public NamespaceManager NamespaceManager {
 		get { return ns; }
 	}