Co-authored-by: Stephan T. Lavavej <stl@microsoft.com>

…oft#5100)

Co-authored-by: Stephan T. Lavavej <stl@microsoft.com>

…gly encoded input (microsoft#5431)

Co-authored-by: Stephan T. Lavavej <stl@microsoft.com>

…osoft#5436)

…0FF and U+0100 correctly (microsoft#5437)

Co-authored-by: Stephan T. Lavavej <stl@microsoft.com>

…nother named character class (microsoft#5438)

…t keys appropriate for the imbued locale (microsoft#5444)

Co-authored-by: Stephan T. Lavavej <stl@microsoft.com>

…rosoft#5456)

Co-authored-by: Stephan T. Lavavej <stl@microsoft.com>

…ts with `?` quantifier or several alternatives (microsoft#5457)

…t collate the same (microsoft#5469)

Co-authored-by: Stephan T. Lavavej <stl@microsoft.com>

Co-authored-by: Stephan T. Lavavej <stl@microsoft.com>

…ft#5443)

Co-authored-by: Stephan T. Lavavej <stl@microsoft.com>

Co-authored-by: Stephan T. Lavavej <stl@microsoft.com>

…uation (microsoft#5449)

Co-authored-by: Stephan T. Lavavej <stl@microsoft.com>

…sors (microsoft#5459)

Co-authored-by: Stephan T. Lavavej <stl@microsoft.com>

…to 145 (microsoft#5464)

…ft#5477)

Co-authored-by: Stephan T. Lavavej <stl@microsoft.com>

…#5480)