Pass the token type to yysyntax_error.

* data/yacc.c (yysyntax_error): Take the transated token instead
	of the raw number.
	Adjust callers.
	* TODO: Update.

TODO

@@ -156,10 +156,6 @@ other improvements and also made it faster (probably because memory
 management is performed once instead of three times).  I suggest that
 we do the same in yacc.c.
 
-** yysyntax_error
-In lalr1.cc we invoke it with the translated lookahead (yytoken), and
-yacc.c uses yychar.  I don't see why.
-
 ** yysyntax_error
 The code bw glr.c and yacc.c is really alike, we can certainly factor
 some parts.