return targets to library

test/core/memory_usage/BUILD

@@ -12,13 +12,13 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-load("//bazel:grpc_build_system.bzl", "grpc_cc_binary", "grpc_cc_test", "grpc_package")
+load("//bazel:grpc_build_system.bzl", "grpc_cc_library", "grpc_cc_test", "grpc_package")
 
 grpc_package(name = "test/core/memory_usage")
 
 licenses(["notice"])  # Apache v2
 
-grpc_cc_binary(
+grpc_cc_library(
     name = "memory_usage_client",
     testonly = 1,
     srcs = ["client.cc"],
@@ -29,7 +29,7 @@ grpc_cc_binary(
     ],
 )
 
-grpc_cc_binary(
+grpc_cc_library(
     name = "memory_usage_server",
     testonly = 1,
     srcs = ["server.cc"],

test/core/memory_usage/server.cc

@@ -295,7 +295,6 @@ int main(int argc, char** argv) {
           /* fallthrough */
           // no break here since we want to continue to case
           // FLING_SERVER_SEND_STATUS_SNAPSHOT to destroy the snapshot call
-          [[fallthrough]];
           case FLING_SERVER_SEND_STATUS_SNAPSHOT:
             grpc_byte_buffer_destroy(payload_buffer);
             grpc_byte_buffer_destroy(terminal_buffer);