const ness updates in base class, etc

include/cling/TagsExtension/AutoloadCallback.h

@@ -35,7 +35,7 @@ namespace cling {
 
     bool LookupObject (clang::LookupResult &R, clang::Scope *);
     
-    TagManager* getTagManager() { return m_Tags; }
+    TagManager* getTagManager();
   private:
     Interpreter* m_Interpreter;
     TagManager* m_Tags;

include/cling/TagsExtension/Wrapper.h

@@ -28,11 +28,11 @@ namespace cling {
 
     ///\brief True if the file was generated and not already present.
     ///
-    virtual bool newFile() = 0;
+    virtual bool newFile() const = 0;
 
     ///\brief True if the file is in a valid state.
     ///
-    virtual bool validFile() = 0;
+    virtual bool validFile() const = 0;
 
     virtual ~TagFileWrapper() {}
 

lib/TagsExtension/AutoloadCallback.cpp

@@ -44,4 +44,8 @@ namespace cling {
     // FIXME: There is an m_Interpreter in the base class InterpreterCallbacks. 
   }
 
+  TagManager* AutoloadCallback::getTagManager() {
+    return m_Tags;
+  }
+
 }//end namespace cling