Add new columns to test expectations

Author: owen-mc

go/ql/test/experimental/CWE-770/DenialOfService.expected

@@ -1,10 +1,10 @@
 edges
-| DenialOfServiceBad.go:11:12:11:16 | selection of URL | DenialOfServiceBad.go:11:12:11:24 | call to Query |
-| DenialOfServiceBad.go:11:12:11:24 | call to Query | DenialOfServiceBad.go:13:15:13:20 | source |
-| DenialOfServiceBad.go:13:15:13:20 | source | DenialOfServiceBad.go:13:15:13:29 | call to Get |
-| DenialOfServiceBad.go:13:15:13:29 | call to Get | DenialOfServiceBad.go:14:28:14:36 | sourceStr |
-| DenialOfServiceBad.go:14:2:14:37 | ... := ...[0] | DenialOfServiceBad.go:20:27:20:30 | sink |
-| DenialOfServiceBad.go:14:28:14:36 | sourceStr | DenialOfServiceBad.go:14:2:14:37 | ... := ...[0] |
+| DenialOfServiceBad.go:11:12:11:16 | selection of URL | DenialOfServiceBad.go:11:12:11:24 | call to Query | provenance |  |
+| DenialOfServiceBad.go:11:12:11:24 | call to Query | DenialOfServiceBad.go:13:15:13:20 | source | provenance |  |
+| DenialOfServiceBad.go:13:15:13:20 | source | DenialOfServiceBad.go:13:15:13:29 | call to Get | provenance |  |
+| DenialOfServiceBad.go:13:15:13:29 | call to Get | DenialOfServiceBad.go:14:28:14:36 | sourceStr | provenance |  |
+| DenialOfServiceBad.go:14:2:14:37 | ... := ...[0] | DenialOfServiceBad.go:20:27:20:30 | sink | provenance |  |
+| DenialOfServiceBad.go:14:28:14:36 | sourceStr | DenialOfServiceBad.go:14:2:14:37 | ... := ...[0] | provenance |  
 nodes
 | DenialOfServiceBad.go:11:12:11:16 | selection of URL | semmle.label | selection of URL |
 | DenialOfServiceBad.go:11:12:11:24 | call to Query | semmle.label | call to Query |