
[enh] isUpperAscii*, isLowerAscii* speedup execution by stopping
      iteration as soon as possible

dom96/Nim,dom96/Nim,jfhg/Nim,jfhg/Nim,tulayang/Nim,tulayang/Nim,jfhg/Nim,russpowers/Nim,russpowers/Nim,tulayang/Nim,jfhg/Nim,tulayang/Nim,russpowers/Nim,russpowers/Nim,tulayang/Nim,dom96/Nim,dom96/Nim,jfhg/Nim,tulayang/Nim,dom96/Nim,russpowers/Nim,russpowers/Nim,jfhg/Nim,dom96/Nim,dom96/Nim,russpowers/Nim,jfhg/Nim