Add Unicode support to String.to_*_case()
methods
#75846
Merged
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I think this is necessary because GDScript supports Unicode identifiers (#71676) and we have the
editor/naming/default_signal_callback_name
setting that should also support Unicode (#75814).is_unicode_upper_case()
andis_unicode_lower_case()
functions.is_unicode_identifier_start()
andis_unicode_identifier_continue()
functions by using binary search.