[stmt.ranged] Do not use \grammarterm for begin-expr and end-expr.

source/statements.tex

@@ -659,24 +659,24 @@
 exposition only; and
 
 \item
-\textit{begin-expr} and \textit{end-expr} are determined as follows:
+\placeholder{begin-expr} and \placeholder{end-expr} are determined as follows:
 
 \begin{itemize}
 \item if the \grammarterm{for-range-initializer} is an expression of
-array type \tcode{R}, \textit{begin-expr} and \textit{end-expr} are
+array type \tcode{R}, \placeholder{begin-expr} and \placeholder{end-expr} are
 \tcode{__range} and \tcode{__range + __bound}, respectively, where \tcode{__bound} is
-the array bound. If \tcode{R} is an array of unknown size or an array of
+the array bound. If \tcode{R} is an array of unknown bound or an array of
 incomplete type, the program is ill-formed;
 
 \item if the \grammarterm{for-range-initializer} is an expression of
 class type \tcode{C}, the \grammarterm{unqualified-id}{s}
 \tcode{begin} and \tcode{end} are looked up in the scope of \tcode{C}
 as if by class member access lookup~(\ref{basic.lookup.classref}), and if either
-(or both) finds at least one declaration, \grammarterm{begin-expr} and
-\grammarterm{end-expr} are \tcode{__range.begin()} and \tcode{__range.end()},
+(or both) finds at least one declaration, \placeholder{begin-expr} and
+\placeholder{end-expr} are \tcode{__range.begin()} and \tcode{__range.end()},
 respectively;
 
-\item otherwise, \textit{begin-expr} and \textit{end-expr} are \tcode{begin(__range)}
+\item otherwise, \placeholder{begin-expr} and \placeholder{end-expr} are \tcode{begin(__range)}
 and \tcode{end(__range)}, respectively, where \tcode{begin} and \tcode{end} are looked
 up in the associated namespaces~(\ref{basic.lookup.argdep}).
 \begin{note} Ordinary unqualified lookup~(\ref{basic.lookup.unqual}) is not