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

third_party/sqlite/src/test/types3.test

Index: third_party/sqlite/src/test/types3.test
diff --git a/third_party/sqlite/src/test/types3.test b/third_party/sqlite/src/test/types3.test
index 33f2595cb988f163a4992a75594e419cdc7bb1b6..807ae84f9d2dbe5896b7348eefd3556920f8dcbf 100644
--- a/third_party/sqlite/src/test/types3.test
+++ b/third_party/sqlite/src/test/types3.test
@@ -21,7 +21,7 @@ source $testdir/tester.tcl
 # A variable with only a string representation comes in as TEXT
 do_test types3-1.1 {
   set V {}
-  append V {}
+  append V x
   concat [tcl_variable_type V] [execsql {SELECT typeof(:V)}]
 } {string text}