QInputControl: accept surrogate category character
QInputControl: accept surrogate category character
See also https://unicodebook.readthedocs.io/unicode_encodings.html#utf-16-surrogate-pairs .
Fixes: QTBUG-89184 Pick-to: 6.0 5.15 Change-Id: I04eff7f42f0030346603a7b31e4ac854a477030c Reviewed-by: Lars Knoll lars.knoll@qt.io