George Yoshida points out that the special characters

nnorwitz · nnorwitz · commit 77e42fff31a2 · 2006-02-28T17:46:48.000Z
from Tools/compiler/ast.txt are not used anywhere else in asttable.txt.
So remove "\&amp;".
diff --git a/Doc/lib/asttable.tex b/Doc/lib/asttable.tex
@@ -273,7 +273,7 @@
 \hline 
 
 \lineiii{With}{\member{expr}}{}
-\lineiii{}{\member{vars\&}}{}
+\lineiii{}{\member{vars}}{}
 \lineiii{}{\member{body}}{}
 \hline 
 
