Add //third_party/sqlite to dirs_to_snapshot, remove net_sql.patch

third_party/sqlite/sqlite-src-3080704/test/tkt1501.test

+# 2005 November 16
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.
+#
+# This file implements tests to verify that ticket #1501 is
+# fixed.  
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+ifcapable !compound {
+  finish_test
+  return
+}
+
+do_test tkt1501-1.1 {
+  execsql {
+    CREATE TABLE t1(a,b);
+    INSERT INTO t1 VALUES(1,2);
+    SELECT a, b, 'abc' FROM t1
+      UNION
+      SELECT b, a, 'xyz' FROM t1
+      ORDER BY 2, 3;
+  }
+} {2 1 xyz 1 2 abc}
+
+finish_test