Reorganizing the code

Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>

src/model/model_pp.h

@@ -0,0 +1,28 @@
+/*++
+Copyright (c) 2011 Microsoft Corporation
+
+Module Name:
+
+    model_pp.h
+
+Abstract:
+
+    Pretty printer for models for debugging purposes.
+
+Author:
+
+    Leonardo de Moura (leonardo)
+
+Revision History:
+
+
+--*/
+#ifndef _MODEL_PP_H_
+#define _MODEL_PP_H_
+
+#include<iostream>
+class model_core;
+
+void model_pp(std::ostream & out, model_core const & m);
+
+#endif