A destructor is present on this object, but not explicitly documented in the source.
Parse escape sequence.
Read a number.
Scan regular expression. Return null with buffer pointer intact if it is not a regexp.
Horrible kludge to support disambiguating TOKregexp from TOKdivide. The idea is, if we are looking for a TOKdivide, and find instead a TOKregexp, we back up and rescan.
Turn next token in buffer into a token.
Given source text, convert loc to a string for the corresponding line.