[dev.boringcrypto.go1.8] api: add x509.VerifyOptions.IsBoring

Change-Id: I288938f86937a226071a0375a619afa0c0506b0b
Reviewed-on: https://go-review.googlesource.com/65512


Run-TryBot: Russ Cox <rsc@golang.org>
Reviewed-by: Russ Cox <rsc@golang.org>

api/go1.8.txt

@@ -57,6 +57,7 @@ pkg crypto/x509, const SHA384WithRSAPSS SignatureAlgorithm
 pkg crypto/x509, const SHA512WithRSAPSS = 15
 pkg crypto/x509, const SHA512WithRSAPSS SignatureAlgorithm
 pkg crypto/x509, type UnknownAuthorityError struct, Cert *Certificate
+pkg crypto/x509, type VerifyOptions struct, IsBoring func(*Certificate) bool
 pkg database/sql, const LevelDefault = 0
 pkg database/sql, const LevelDefault IsolationLevel
 pkg database/sql, const LevelLinearizable = 7