Refactoring: Introduce immutable and mutable interfaces

Split Definition/ClassDef/NamespaceDef/MemberDef into a immutable and mutable part
Aliases are immutable, other symbols are stored using an immutable
interface but can be made mutable explicitly by dynamic casting.

1 files changed, 1 insertions, 1 deletions

diff --git a/src/groupdef.h b/src/groupdef.h
index 82fa004..b9e0740 100644
--- a/src/groupdef.h
+++ b/src/groupdef.h
@@ -43,7 +43,7 @@ class MemberDef;
 class FTextStream;
 
 /** A model of a group of symbols. */
-class GroupDef : virtual public Definition
+class GroupDef : virtual public DefinitionMutable
 {
   public:
    ~GroupDef() {}