const crypto/tls.extensionSupportedVersions

6 uses

	crypto/tls (current package)
		common.go#L124: 	extensionSupportedVersions       uint16 = 43
		handshake_messages.go#L255: 			echOuterExts = append(echOuterExts, extensionSupportedVersions)
		handshake_messages.go#L257: 			exts.AddUint16(extensionSupportedVersions)
		handshake_messages.go#L590: 		case extensionSupportedVersions:
		handshake_messages.go#L793: 		exts.AddUint16(extensionSupportedVersions)
		handshake_messages.go#L945: 		case extensionSupportedVersions:

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