[gcjx] Patch: FYI: fix crash with un-annotated fields

[Tom Tromey]

I'm checking this in on the gcjx branch.

This code caused a crash when trying to resolve the warning
suppressions for a field.  Replacing the old-style cast with a
const_cast<> fixed the problem.

Apparently this is an artifact of using a newer compiler, I only
started seeing this with the current cvs head.

Tom

Index: ChangeLog
from  Tom Tromey  <tromey@redhat.com>
	* model/field.cc (type): Use const_cast.

Index: model/field.cc
===================================================================
RCS file: /cvs/gcc/gcc/gcjx/model/Attic/field.cc,v
retrieving revision 1.1.2.1
diff -u -r1.1.2.1 field.cc
--- model/field.cc 13 Jan 2005 03:18:36 -0000 1.1.2.1
+++ model/field.cc 15 Jan 2005 06:07:23 -0000
@@ -1,6 +1,6 @@
 // Fields.
 
-// Copyright (C) 2004 Free Software Foundation, Inc.
+// Copyright (C) 2004, 2005 Free Software Foundation, Inc.
 //
 // This file is part of GCC.
 //
@@ -68,11 +68,9 @@
     {
       resolution_scope scope;
       declaring_class->push_on_scope (&scope);
-      // FIXME: ugly cast.
-      resolution_scope::push_warnings warn_holder (&scope,
-						   (IAnnotatable *) this);
-      // FIXME: ugly cast.
-      ((model_field *) this)->resolve_classes (&scope);
+      model_field *unconst_this = const_cast<model_field *> (this);
+      resolution_scope::push_warnings warn_holder (&scope, unconst_this);
+      unconst_this->resolve_classes (&scope);
     }
 
   return model_variable_decl::type ();