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

third_party/sqlite/src/test/notify2.test

 # 2009 March 04
 #
 # 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 132 matching lines @@
       # Hit an SQLITE_LOCKED error. Rollback the current transaction.
       set rc [catch { execsql_blocking $::DB ROLLBACK } msg]
       if {$rc && [string match "SQLITE_LOCKED*" $msg]} {
         sqlite3_close $::DB
         opendb
       } 
     } elseif {$rc} {
       # Hit some other kind of error. This is a malfunction.
       error $msg
     } else {
-      # No error occured. Check that any SELECT statements in the transaction
+      # No error occurred. Check that any SELECT statements in the transaction
       # returned "1". Otherwise, the invariant was false, indicating that
-      # some malfunction has occured.
+      # some malfunction has occurred.
       foreach r $msg { if {$r != 1} { puts "Invariant check failed: $msg" } }
     }
   }
 
   # Close the database connection and return 0.
   #
   sqlite3_close $::DB
   expr 0
 }
 
 foreach {iTest xStep xPrepare} {
   1 sqlite3_blocking_step sqlite3_blocking_prepare_v2
   2 sqlite3_step          sqlite3_nonblocking_prepare_v2
 } {
-  file delete -force test.db test2.db test3.db
+  forcedelete test.db test2.db test3.db
 
   set ThreadSetup "set xStep $xStep;set xPrepare $xPrepare;set nSecond $nSecond"
 
   # Set up the database schema used by this test. Each thread opens file
   # test.db as the main database, then attaches files test2.db and test3.db
   # as auxillary databases. Each file contains a single table (t1, t2 and t3, in
   # files test.db, test2.db and test3.db, respectively). 
   #
   do_test notify2-$iTest.1.1 {
     sqlite3 db test.db
@@ skipping 52 matching lines @@
 puts "The following test seeks to demonstrate that the sqlite3_unlock_notify()"
 puts "interface helps multi-core systems to run faster.  This test sometimes"
 puts "fails on single-core machines."
 puts [array get anWrite]
 do_test notify2-3 {
   expr {$anWrite(sqlite3_blocking_step) > $anWrite(sqlite3_step)}
 } {1}
 
 sqlite3_enable_shared_cache $::enable_shared_cache
 finish_test