Resolves#105373, resolves#118371 and resolves#105332
- Implements `<text_encoding>`
- Adds availability macros for LLVM 23.
- The data is stored in three tables:
- One giant string split by null-terminators to represent the aliases
- An index table which stores indexes into the string, each entry
representing the first character of an alias
- Text encoding data, which stores an index to the index table, the MIB,
and the number of aliases the encoding has.
Storing it in the above manner allows us to make significant savings in
binary file size and required runtime storage for the data.
As required by the LLVM Project's AI use policy:
- The implementation for `__get_locale_encoding(const char*)` for
Windows has been developed with the assistance of AI.
---------
Co-authored-by: A. Jiang <de34@live.cn>
William Tran-VietandA. Jiang
8a531c3608