Function _isIdentCodePoint

lib/css/syntax.js:350–351

(cc)

 * @returns {boolean} true, if cc is an ident-sequence code point
 */
const _isIdentCodePoint = (cc) =>
	cc < 128 ? _identCharTable[cc] === 1 : _isIdentStartCodePointCC(cc);

/**
 * ASCII case-insensitive equality against a lowercase literal — avoids the