Remove unused-parameter warnings, round 2 (17 of 19)

test/core/iomgr/ev_epollex_linux_test.cc

@@ -111,5 +111,5 @@ int main(int argc, char** argv) {
   return 0;
 }
 #else /* defined(GRPC_LINUX_EPOLL_CREATE1) && defined(GRPC_LINUX_EVENTFD) */
-int main(int argc, char** argv) { return 0; }
+int main(int /*argc*/, char** /*argv*/) { return 0; }
 #endif

test/core/iomgr/tcp_client_uv_test.cc

@@ -209,6 +209,6 @@ int main(int argc, char** argv) {
 
 #else /* GRPC_UV */
 
-int main(int argc, char** argv) { return 1; }
+int main(int /*argc*/, char** /*argv*/) { return 1; }
 
 #endif /* GRPC_UV */

test/core/iomgr/tcp_server_uv_test.cc

@@ -314,6 +314,6 @@ int main(int argc, char** argv) {
 
 #else /* GRPC_UV */
 
-int main(int argc, char** argv) { return 1; }
+int main(int /*argc*/, char** /*argv*/) { return 1; }
 
 #endif /* GRPC_UV */

test/core/json/json_stream_error_test.cc

@@ -28,12 +28,14 @@
 
 static int g_string_clear_once = 0;
 
-static void string_clear(void* userdata) {
+static void string_clear(void* /*userdata*/) {
   GPR_ASSERT(!g_string_clear_once);
   g_string_clear_once = 1;
 }
 
-static uint32_t read_char(void* userdata) { return GRPC_JSON_READ_CHAR_ERROR; }
+static uint32_t read_char(void* /*userdata*/) {
+  return GRPC_JSON_READ_CHAR_ERROR;
+}
 
 static grpc_json_reader_vtable reader_vtable = {
     string_clear, nullptr, nullptr, read_char, nullptr, nullptr,

test/core/security/check_gcp_environment_linux_test.cc

@@ -72,7 +72,7 @@ static void test_gcp_environment_check_failure() {
   GPR_ASSERT(!check_bios_data_linux_test("\n"));
 }
 
-int main(int argc, char** argv) {
+int main(int /*argc*/, char** /*argv*/) {
   /* Tests. */
   test_gcp_environment_check_success();
   test_gcp_environment_check_failure();
@@ -81,6 +81,6 @@ int main(int argc, char** argv) {
 
 #else  // GPR_LINUX
 
-int main(int argc, char** argv) { return 0; }
+int main(int /*argc*/, char** /*argv*/) { return 0; }
 
 #endif  // GPR_LINUX

test/core/security/check_gcp_environment_windows_test.cc

@@ -68,6 +68,6 @@ int main(int argc, char** argv) {
 }
 #else  // GPR_WINDOWS
 
-int main(int argc, char** argv) { return 0; }
+int main(int /*argc*/, char** /*argv*/) { return 0; }
 
 #endif  // GPR_WINDOWS

test/core/security/grpc_alts_credentials_options_test.cc

@@ -87,7 +87,7 @@ static void test_client_options_api_success() {
   grpc_alts_credentials_options_destroy(new_options);
 }
 
-int main(int argc, char** argv) {
+int main(int /*argc*/, char** /*argv*/) {
   /* Test. */
   test_copy_client_options_failure();
   test_client_options_api_success();

test/core/security/oauth2_utils.cc

@@ -63,7 +63,7 @@ static void on_oauth2_response(void* arg, grpc_error* error) {
   gpr_mu_unlock(request->mu);
 }
 
-static void destroy_after_shutdown(void* pollset, grpc_error* error) {
+static void destroy_after_shutdown(void* pollset, grpc_error* /*error*/) {
   grpc_pollset_destroy(reinterpret_cast<grpc_pollset*>(pollset));
   gpr_free(pollset);
 }

test/core/transport/chttp2/bin_encoder_test.cc

@@ -98,7 +98,7 @@ static void expect_binary_header(const char* hdr, int binary) {
   }
 }
 
-int main(int argc, char** argv) {
+int main(int /*argc*/, char** /*argv*/) {
   grpc_init();
 
   /* Base64 test vectors from RFC 4648, with padding removed */