Prevent memory leak and possible NULL pointer deference after malloc
failure.  Ticket #1886. (CVS 3329)

FossilOrigin-Name: b1f326e6959ef3be11f772e80f5ab6dd65b2d065
diff --git a/src/sqliteInt.h b/src/sqliteInt.h
index ff5edb0..360c69c 100644
--- a/src/sqliteInt.h
+++ b/src/sqliteInt.h
@@ -11,7 +11,7 @@
 *************************************************************************
 ** Internal interface definitions for SQLite.
 **
-** @(#) $Id: sqliteInt.h,v 1.519 2006/07/08 18:35:00 drh Exp $
+** @(#) $Id: sqliteInt.h,v 1.520 2006/07/11 13:15:08 drh Exp $
 */
 #ifndef _SQLITEINT_H_
 #define _SQLITEINT_H_
@@ -1568,6 +1568,7 @@
 int sqlite3RunParser(Parse*, const char*, char **);
 void sqlite3FinishCoding(Parse*);
 Expr *sqlite3Expr(int, Expr*, Expr*, const Token*);
+Expr *sqlite3ExprOrFree(int, Expr*, Expr*, const Token*);
 Expr *sqlite3RegisterExpr(Parse*,Token*);
 Expr *sqlite3ExprAnd(Expr*, Expr*);
 void sqlite3ExprSpan(Expr*,Token*,Token*);