[expr.new] Use typical \iref

Author: opensdh

source/expressions.tex

@@ -4906,7 +4906,7 @@
 \begin{note}
 Only \grammarterm{new-expression}{s} that would otherwise result in
 a call to a replaceable global allocation function
-can be evaluated in constant expressions (see \ref{expr.const}).
+can be evaluated in constant expressions\iref{expr.const}.
 \end{note}
 
 \pnum