GRPC_CHANNEL_FATAL_FAILURE --> GRPC_CHANNEL_SHUTDOWN

include/grpc/impl/codegen/connectivity_state.h

src/core/ext/client_config/channel_connectivity.c

src/core/ext/client_config/client_channel.c

src/core/ext/client_config/subchannel.c

src/core/ext/lb_policy/pick_first/pick_first.c

src/core/ext/lb_policy/round_robin/round_robin.c

src/core/ext/transport/chttp2/transport/chttp2_transport.c

src/core/lib/surface/lame_client.c

src/core/lib/surface/server.c

src/core/lib/transport/connectivity_state.c

src/node/ext/node_grpc.cc

src/php/ext/grpc/php_grpc.c

src/python/grpcio/grpc/_cython/_cygrpc/grpc.pxi

src/python/grpcio/grpc/_cython/_cygrpc/records.pyx.pxi

src/ruby/ext/grpc/rb_channel.c

test/core/end2end/fuzzers/api_fuzzer.c

test/core/surface/lame_client_test.c

test/core/transport/connectivity_state_test.c