Removed change markup for X:required and X:to

\item most recent definition does not have a \emph{name}

	(\wref{core:IMMEDIATE}{IMMEDIATE});

\item \remove{x:to}{\emph{name} not defined by \wref{core:VALUE}{VALUE}

	used by \wref{core:TO}{TO};}

\item \place{x:to}{%

	\wref{core:TO}{TO} not followed directly by a \emph{name} defined

	by a word with ``\word{TO} \emph{name} runtime'' semantics

	(\wref{core:VALUE}{VALUE} and \wref{local:LOCAL}{(LOCAL)});}

\item \wref{core:TO}{TO} not followed directly by a \emph{name}

	defined by a word with ``\word{TO} \emph{name} runtime''

	semantics (\wref{core:VALUE}{VALUE} and

	\wref{local:LOCAL}{(LOCAL)});

\item \emph{name} not found \wref{core:'}{'},

	\wref{core:POSTPONE}{POSTPONE}, \wref{core:[']}{[']},

\item parameters are not of the same type \wref{core:DO}{DO},

	\wref{core:qDO}{?DO}, \wref{core:WITHIN}{WITHIN});

\item \wref{core:POSTPONE}{POSTPONE}\replace{x:to}{ or}{,}

	\wref{core:[COMPILE]}{[COMPILE]}\place{x:to}{,

\item \wref{core:POSTPONE}{POSTPONE},

	\wref{core:[COMPILE]}{[COMPILE]},

	\wref{core:'}{'} or

	\wref{core:[']}{[']}}

	applied to \wref{core:TO}{TO};

	\wref{core:[']}{[']} applied to \wref{core:TO}{TO};

\item string longer than a counted string returned by

	\wref{core:WORD}{WORD};

% ==== X: Required ====

\item[\textsf{X:required}] %\cbstart\marginpar{\tiny x:required} ~

\item[\textsf{X:required}] ~

	\begin{itemize}

\item a file is required while it is being \word[file]{REQUIRED}

	(\ref{file:REQUIRED}) or \word[file]{INCLUDED} (\ref{file:INCLUDED}).

% ==== X: Structures ====

\item[\textsf{X:structures}] \cbstart\marginpar{\tiny x:structures} ~

\item[\textsf{X:structures}] ~ \cbstart\marginpar{\tiny x:structures} ~

	\begin{itemize}

\item A \param{name} defined by

	\wref{facility:BEGIN-STRUCTURE}{BEGIN-STRUCTURE}

	is executed before the coresponding

	is executed before the corresponding

	\wref{facility:END-STRUCTURE}{END-STRUCTURE}

	has been executed.

	\end{itemize}