Optimizations to the Walker object and its methods to make the code a little
smaller and to help it run a little faster.

FossilOrigin-Name: 6854a34ed708259f2280f7ee56cec09f7fc99810dc739dc2814ddeae286aa2c4
diff --git a/src/sqliteInt.h b/src/sqliteInt.h
index fc24885..7c78fdb 100644
--- a/src/sqliteInt.h
+++ b/src/sqliteInt.h
@@ -3337,6 +3337,10 @@
 int sqlite3WalkSelectExpr(Walker*, Select*);
 int sqlite3WalkSelectFrom(Walker*, Select*);
 int sqlite3ExprWalkNoop(Walker*, Expr*);
+int sqlite3SelectWalkNoop(Walker*, Select*);
+#ifdef SQLITE_DEBUG
+void sqlite3SelectWalkAssert2(Walker*, Select*);
+#endif
 
 /*
 ** Return code from the parse-tree walking primitives and their