Log SNI on QUIC_BUG(quic_crypto_send_buffer_overflow)

To help with debugging b/235811024

PiperOrigin-RevId: 454733691

quiche/quic/core/quic_crypto_stream.cc

diff --git a/quiche/quic/core/quic_crypto_stream.cc b/quiche/quic/core/quic_crypto_stream.cc
index c85b9ab..b43720e 100644
--- a/quiche/quic/core/quic_crypto_stream.cc
+++ b/quiche/quic/core/quic_crypto_stream.cc
@@ -166,7 +166,8 @@
             << absl::StrCat("Too much data for crypto send buffer with level: ",
                             EncryptionLevelToString(level),
                             ", current_buffer_size: ", current_buffer_size,
-                            ", data length: ", data.length());
+                            ", data length: ", data.length(),
+                            ", SNI: ", crypto_negotiated_params().sni);
         OnUnrecoverableError(QUIC_INTERNAL_ERROR,
                              "Too much data for crypto send buffer");
         return;