Moc: don't stumple over inline namespace in more places

Ignore the 'inline' in case of nested namespace with another
nested inline namespace.

Amends 5222df2be7

Fixes: QTBUG-117765
Pick-to: 6.6 6.5
Change-Id: I87f2649606f63c818f225f8cc5ec914920763c5f
Reviewed-by: Allan Sandfeld Jensen <allan.jensen@qt.io>
Reviewed-by: Fabian Kosmale <fabian.kosmale@qt.io>

src/tools/moc/moc.cpp

@@ -706,8 +706,10 @@ void Moc::parse()
                             switch (next()) {
                             case NAMESPACE:
                                 if (test(IDENTIFIER)) {
-                                    while (test(SCOPE))
+                                    while (test(SCOPE)) {
+                                        test(INLINE); // ignore inline namespaces
                                         next(IDENTIFIER);
+                                    }
                                     if (test(EQ)) {
                                         // namespace Foo = Bar::Baz;
                                         until(SEMIC);

tests/auto/tools/moc/tst_moc.cpp

@@ -77,6 +77,9 @@ const char *string_hash_hash = STRING_HASH_HASH("baz");
    of writing this comment.
 */
 namespace A::inline B {}
+namespace A {
+   namespace B::inline C {}
+}
 #endif
 
 Q_DECLARE_METATYPE(const QMetaObject*);