Swift: make ParentChild::Impl module private

Author: redsun82

swift/codegen/templates/ql_parent.mustache

@@ -2,7 +2,7 @@
 
 import codeql.swift.elements
 
-module Impl {
+private module Impl {
 {{#classes}}
 int getMaximumChildrenIndex{{name}}({{name}} e) {
   {{#root}}e = e and{{/root}}

swift/ql/lib/codeql/swift/generated/ParentChild.qll

@@ -1,7 +1,7 @@
 // generated by codegen/codegen.py
 import codeql.swift.elements
 
-module Impl {
+private module Impl {
   int getMaximumChildrenIndexElement(Element e) {
     e = e and
     result = 0