[REG 4.3 -> 4.4] Clang: "Extract function" generates syntax error

1. Start Creator with enabled Clang Code Model.
2. Have some simple lines of code:

       int dummy = 0;
       if (dummy < 10)
           ++dummy;
   

3. Select the "if".
4. Right click into the editor and select "Refactor" -> "Extract Function" from the context menu.
5. Enter a name for the function and click "OK".
   The generated function will look like this:

   void functionName()
   {
       if (dummy < 10)
           ++dummy;    
   }
   

   This is syntactically incorrect because dummy is undeclared.

In Creator 4.3 this works correctly as well as with the built-in code model: They make the used variable an input parameter to the function.

Found and tested by Squish test tst_CSUP03.