func stack28()   { var buf [28]byte; use(buf[:]); C.callGoStackCheck() }
func stack32()   { var buf [32]byte; use(buf[:]); C.callGoStackCheck() }
func stack36()   { var buf [36]byte; use(buf[:]); C.callGoStackCheck() }
func stack40()   { var buf [40]byte; use(buf[:]); C.callGoStackCheck() }
func stack44()   { var buf [44]byte; use(buf[:]); C.callGoStackCheck() }

canonicalized, so a single accented code point is distinct from the
same character constructed from combining an accent and a letter;
those are treated as two code points.  For simplicity, this document
will use the unqualified term <i>character</i> to refer to a Unicode code point
in the source text.
</p>
<p>
Each code point is distinct; for instance, upper and lower case letters
are different characters.
</p>
<p>