Flutter engine should not use codeset as Locale.scriptCode on Linux #111341
Description
Description
On linux desktop, Locales are in the form language[_territory][.codeset][@modifier].
https://github.com/flutter/engine/blob/ce4156d519b94989684f508542b7cf644b6e7d67/shell/platform/linux/fl_engine.cc#L79-L112
Flutter engine parsed the string, but assigned codeset to scriptCode:
https://github.com/flutter/engine/blob/ce4156d519b94989684f508542b7cf644b6e7d67/shell/platform/linux/fl_engine.cc#L142
Codeset is not a valid scriptCode in most cases. In addition, on modern linux systems, it may contain -(UTF-8), which may break some locale parsers based on regular expression.