[lex.ccon] Add a grouping brace to clarify table cell

Author: tkoeppe

source/lex.tex

@@ -1570,17 +1570,17 @@
 none &
 \defnx{ordinary character literal}{literal!character!ordinary} &
 \keyword{char} &
-ordinary &
+\multirow{3}{7em}{\!\!$\left.\vphantom{\parbox{1em}{a\\b\\c}}\right\}$ \parbox{5em}{ordinary\\literal\\encoding}} &
 \tcode{'v'} \\ \cline{2-3}\cline{5-5}
  &
 non-encodable ordinary character literal &
 \keyword{int} &
-literal &
+&
 \tcode{'\textbackslash U0001F525'} \\ \cline{2-3}\cline{5-5}
  &
 ordinary multicharacter literal &
 \keyword{int} &
-encoding &
+&
 \tcode{'abcd'} \\ \hline
 \tcode{L} &
 \defnx{wide character literal}{literal!character!wide} &

source/std.tex

@@ -26,6 +26,7 @@
 \usepackage[final]{microtype}
 \usepackage[splitindex,original]{imakeidx}
 \usepackage{multicol}
+\usepackage{multirow}
 \usepackage{lmodern}
 \usepackage{xcolor}
 \usepackage[T1]{fontenc}