New tokens ALWAYS, GENERATED, and STORED used by generated columns should

all be fallback tokens.

FossilOrigin-Name: 13fe6978b7de208d2e27460d824f7fc778cf6ea0aabfe566b32bb410b8816f63

src/parse.y

@@ -220,6 +220,9 @@ columnname(A) ::= nm(A) typetoken(Y). {sqlite3AddColumn(pParse,&A,&Y);}
   CURRENT FOLLOWING PARTITION PRECEDING RANGE UNBOUNDED
   EXCLUDE GROUPS OTHERS TIES
 %endif SQLITE_OMIT_WINDOWFUNC
+%ifndef SQLITE_OMIT_GENERATED_COLUMNS
+  GENERATED ALWAYS STORED
+%endif
   REINDEX RENAME CTIME_KW IF
   .
 %wildcard ANY.