Debugger: Fix soft assert when loading core file

Task-number: QTCREATORBUG-14048
Change-Id: I20d4d8269df3bfb42259ad459b92d5cd738332f5
Reviewed-by: Christian Stenger <christian.stenger@theqtcompany.com>

src/plugins/debugger/gdb/gdbengine.cpp

@@ -1230,7 +1230,7 @@ void GdbEngine::executeDebuggerCommand(const QString &command, DebuggerLanguages
     flushCommand(cmd);
 }
 
-// This is called from CoreAdapter and AttachAdapter.
+// This is triggered when switching snapshots.
 void GdbEngine::updateAll()
 {
     //PENDING_DEBUG("UPDATING ALL\n");