Merge pull request #5535 from ctiller/streams

grpc.def

include/grpc/impl/codegen/sync.h

src/core/iomgr/iomgr.c

src/core/iomgr/iomgr_internal.h

src/core/support/sync.c

src/core/transport/chttp2/internal.h

src/core/transport/chttp2/parsing.c

src/core/transport/chttp2/stream_lists.c

src/core/transport/chttp2/writing.c

src/core/transport/chttp2_transport.c

src/core/transport/metadata.c

src/core/transport/transport.c

src/python/grpcio/grpc/_cython/imports.generated.c

src/python/grpcio/grpc/_cython/imports.generated.h

src/ruby/ext/grpc/rb_grpc_imports.generated.c

src/ruby/ext/grpc/rb_grpc_imports.generated.h

test/cpp/interop/reconnect_interop_client.cc