Indic Syllabic Category - Reordering Killer

Reordering Killer is a value that marks a character as preventing the visual reordering of adjacent Indic script characters, specifically by suppressing the inherent vowel-killing or conjunct-forming behavior that would otherwise occur during syllable shaping. This makes the character act as a "barrier" that forces the rendering engine to treat the surrounding glyphs as separate, unjoined units, rather than allowing them to participate in complex ligature or consonant cluster reordering rules. It is typographically useful for cases where a user wants to explicitly break a default cluster, such as when displaying a standalone vowel sign or a dead consonant without unintended merging.