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

third_party/sqlite/src/test/ioerr4.test

 # 2007 December 19
 #
 # 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.
 #
 #***********************************************************************
@@ skipping 13 matching lines @@
   return
 }
 
 # Enable shared cache mode and incremental vacuum.
 #
 do_test ioerr4-1.1 {
   db close
   set ::enable_shared_cache [sqlite3_enable_shared_cache 1]
 } {0}
 do_test ioerr4-1.2 {
-  file delete -force test.db test.db-journal
+  forcedelete test.db test.db-journal
   sqlite3 db test.db
   sqlite3 db2 test.db
   db eval {
     PRAGMA auto_vacuum=INCREMENTAL;
     CREATE TABLE a(i INTEGER, b BLOB);
   }
   db2 eval {
     SELECT name FROM sqlite_master
   }
 } {a}
@@ skipping 27 matching lines @@
     DELETE FROM a;
     PRAGMA freelist_count;
   }
 } {64}
 
 # Set up for an I/O error on incremental vacuum
 # with two connections on shared cache.
 #
 db close
 db2 close
-file copy -force test.db test.db-bu
+forcecopy test.db test.db-bu
 do_ioerr_test ioerr4-2 -tclprep {
   catch {db2 close}
   db close
-  file delete -force test.db test.db-journal
-  file copy -force test.db-bu test.db
+  forcedelete test.db test.db-journal
+  forcecopy test.db-bu test.db
   sqlite3_enable_shared_cache 1
   set ::DB [sqlite3 db test.db; sqlite3_connection_pointer db]
   db eval {PRAGMA auto_vacuum=INCREMENTAL}
   sqlite3 db2 test.db
 } -tclbody {
   db eval {PRAGMA incremental_vacuum(5)}
 }
 
 db2 close
-file delete -force test.db-bu
+forcedelete test.db-bu
 sqlite3_enable_shared_cache $::enable_shared_cache
 
 finish_test