ClangRefactoring: Ensure that database is written to log after indexing

Change-Id: Ic2473d9fe8dc9b41a7da728c9e1b5202524c1a79
Reviewed-by: Tim Jenssen <tim.jenssen@qt.io>

src/libs/sqlite/sqlitedatabasebackend.h

@@ -85,6 +85,8 @@ public:
 
     void setBusyTimeout(std::chrono::milliseconds timeout);
 
+    void walCheckpointFull();
+
 protected:
     bool databaseIsOpen() const;