NFC: Add doc for id-punct

PiperOrigin-RevId: 265190168
This commit is contained in:
Alina Sbirlea 2019-08-23 21:00:40 -07:00 committed by TensorFlower Gardener
parent 86f68536cb
commit e8384fb1f7

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@ -318,6 +318,7 @@ Token Lexer::lexNumber(const char *tokStart) {
/// block-id ::= '^' suffix-id
/// type-id ::= '!' suffix-id
/// suffix-id ::= digit+ | (letter|id-punct) (letter|id-punct|digit)*
/// id-punct ::= `$` | `.` | `_` | `-`
///
Token Lexer::lexPrefixedIdentifier(const char *tokStart) {
Token::Kind kind;