More merging fixes and asan fix

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

@@ -1583,7 +1583,6 @@ void grpc_chttp2_maybe_complete_recv_message(grpc_exec_ctx *exec_ctx,
           grpc_slice_buffer_swap(&s->unprocessed_incoming_frames_buffer,
                                  &s->frame_storage);
         }
-        /* error handling ok? */
         error = deframe_unprocessed_incoming_frames(
             exec_ctx, &s->data_parser, s,
             &s->unprocessed_incoming_frames_buffer, NULL, s->recv_message);
@@ -1593,6 +1592,7 @@ void grpc_chttp2_maybe_complete_recv_message(grpc_exec_ctx *exec_ctx,
                                                      &s->frame_storage);
           grpc_slice_buffer_reset_and_unref_internal(
               exec_ctx, &s->unprocessed_incoming_frames_buffer);
+          GRPC_ERROR_UNREF(error);
           break;
         } else if (*s->recv_message != NULL) {
           break;

src/core/lib/channel/compress_filter.c

@@ -222,7 +222,7 @@ static void got_slice(grpc_exec_ctx *exec_ctx, void *elemp, grpc_error *error) {
   grpc_call_element *elem = elemp;
   call_data *calld = elem->call_data;
   if (GRPC_ERROR_NONE != grpc_byte_stream_pull(exec_ctx,
-                                               calld->send_op->send_message,
+                                               calld->send_op->payload->send_message.send_message,
                                                &calld->incoming_slice)) {
     /* Should never reach here */
     abort();

src/core/lib/channel/http_client_filter.c

@@ -239,7 +239,7 @@ static void got_slice(grpc_exec_ctx *exec_ctx, void *elemp, grpc_error *error) {
   call_data *calld = elem->call_data;
   calld->send_message_blocked = false;
   if (GRPC_ERROR_NONE != grpc_byte_stream_pull(exec_ctx,
-                                               calld->send_op.send_message,
+                                               calld->send_op->payload->send_message.send_message,
                                                &calld->incoming_slice)) {
     /* Should never reach here */
     abort();

src/core/lib/surface/call.c

@@ -1210,6 +1210,7 @@ static void receiving_slice_ready(grpc_exec_ctx *exec_ctx, void *bctlp,
     *call->receiving_buffer = NULL;
     call->receiving_message = 0;
     finish_batch_step(exec_ctx, bctl);
+    GRPC_ERROR_UNREF(error);
   }
 }