Cling workaround for ROOT-5204 _Bool -> bool

bindings/pyroot/src/Adapters.cxx

@@ -105,14 +105,20 @@ std::string PyROOT::TMemberAdapter::Name( unsigned int mod ) const
    } else if ( mod & Rflx::FINAL )
       return Utility::ResolveTypedef( fMember->GetName() );
 
-// new with cling, TMethod names are fully scoped ...
+// CLING WORKAROUND -- TMethod names are fully scoped ...
    TMethod* m = (TMethod*)*this;
    if (m && m->GetClass()) {
       std::string scoped_name = m->GetName();
       std::string class_name = m->GetClass()->GetName();
       std::string::size_type pos = scoped_name.find(class_name + "::");
       if (pos == 0)      // only accept found at start
-         return scoped_name.substr(class_name.size() + 2 /* for :: */, std::string::npos);
+         scoped_name = scoped_name.substr(class_name.size() + 2 /* for :: */, std::string::npos);
+
+   // CLING WORKAROUND (ROOT-5204) -- operator _Bool -> operator bool
+      if ( scoped_name == "operator _Bool" )
+         scoped_name = "operator bool";
+   // -- CLING WORKAROUND
+      return scoped_name;
    }
 
 // CLING WORKAROUND -- should not be null, but can be due #100389