nl_tokens: ES6 21 . 2 . 5 . 5 .
pl_tokens: function RegExpGetIgnoreCase ( ) { if ( ! IS_REGEXP ( this ) ) { // TODO(littledan): Remove this RegExp compat workaround if ( this === GlobalRegExpPrototype ) { % IncrementUseCounter ( kRegExpPrototypeOldFlagGetter ) ; return UNDEFINED ; } throw MakeTypeError ( kRegExpNonRegExp , "RegExp.prototype.ignoreCase" ) ; } <mask> TO_BOOLEAN ( REGEXP_IGNORE_CASE ( this ) ) ; }