combining-chars-break-char-literals

A Devanagari, Gurmukhi, or other diacritic-marked letter that looks like one glyph in the editor fails to compile as a 'x' character literal with "Too many characters in a character literal," because it is a base letter plus a separate combining mark — two Chars, not one. Use when a lookup table keyed by Char needs an entry for a marked or accented letter outside plain Latin, or when per-character text processing…