Add RenewTicketOnResume tests.

Didn't have coverage for abbreviated handshakes with NewSessionTicket. Also add
some missing resumeSession flags so the tests match the comments.

Change-Id: Ie4d76e8764561f3f1f31e1aa9595324affce0db8
Reviewed-on: https://boringssl-review.googlesource.com/1453
Reviewed-by: Adam Langley <agl@google.com>
diff --git a/ssl/test/runner/common.go b/ssl/test/runner/common.go
index 6c1dfcd..8859db8 100644
--- a/ssl/test/runner/common.go
+++ b/ssl/test/runner/common.go
@@ -406,6 +406,10 @@
 	// ClientKeyExchange with the specified version rather than the
 	// client_version when performing the RSA key exchange.
 	RsaClientKeyExchangeVersion uint16
+
+	// RenewTicketOnResume causes the server to renew the session ticket and
+	// send a NewSessionTicket message during an abbreviated handshake.
+	RenewTicketOnResume bool
 }
 
 func (c *Config) serverInit() {