(upcase1): Likewise, for UPCASE_TABLE.
(uppercasep, lowercasep, upcase): New static inline functions.
* editfns.c (Fchar_equal): Remove no-longer-needed workaround for
- the race-condition problem the old DOWNCASE.
+ the race-condition problem in the old DOWNCASE.
* regex.c (CHARSET_LOOKUP_RANGE_TABLE_RAW, POP_FAILURE_REG_OR_COUNT):
Rename locals to avoid shadowing.