nvda

8f77dc97 - Offsets textInfos: treat 32 bit unicode characters consuming two UTF-16 code units as one character instead of two (#8953)

Offsets textInfos: treat 32 bit unicode characters consuming two UTF-16 code units as one character instead of two (#8953) * OffsetsTextInfo: When retrieving characters, support Unicode code points beyond 16 bits. * Use constants for surrogates * Review actions based on code snippet by @jcsteh * Unit tests * UTF-8 without BOM for tests * Move range comments * Update changes