CMake: pro2cmake.py: Do not double-report include files

Do not add scopes that are going to get merged into their parent scope
as a child of the parent scope. This leads to the information of the
child scope being duplicated.

Change-Id: If4d6a83b9c9eac477959e7774e9cf65fd4df98e6
Reviewed-by: Frederik Gladhorn <frederik.gladhorn@qt.io>

util/cmake/pro2cmake.py

@@ -901,9 +901,9 @@ def do_include(scope: Scope, *, debug: bool = False) -> None:
 
         include_result = parseProFile(include_file, debug=debug)
         include_scope \
-            = Scope.FromDict(scope, include_file,
+            = Scope.FromDict(None, include_file,
                              include_result.asDict().get('statements'),
-                             '', dir)
+                             '', dir)  # This scope will be merged into scope, so no parent_scope!
 
         do_include(include_scope)