[compiler-rt] Use empty SuspendedThreadsList for Fuchsia

d48f2d7 made destructor of SuspendedThreadsList protected, so we need
an empty subclass to pass to the callback now.

Differential Revision: https://reviews.llvm.org/D90695

compiler-rt/lib/lsan/lsan_common_fuchsia.cpp

@@ -19,6 +19,7 @@
 
 #include "lsan_allocator.h"
 #include "sanitizer_common/sanitizer_flags.h"
+#include "sanitizer_common/sanitizer_stoptheworld_fuchsia.h"
 #include "sanitizer_common/sanitizer_thread_registry.h"
 
 // Ensure that the Zircon system ABI is linked in.
@@ -147,7 +148,7 @@ void LockStuffAndStopTheWorld(StopTheWorldCallback callback,
               &params->argument->frontier);
         }
 
-        params->callback({}, params->argument);
+        params->callback(SuspendedThreadsListFuchsia(), params->argument);
       },
       &params);
 

compiler-rt/lib/sanitizer_common/sanitizer_stoptheworld_fuchsia.cpp

@@ -17,6 +17,7 @@
 #include <zircon/sanitizer.h>
 
 #include "sanitizer_stoptheworld.h"
+#include "sanitizer_stoptheworld_fuchsia.h"
 
 namespace __sanitizer {
 
@@ -32,7 +33,7 @@ void StopTheWorld(StopTheWorldCallback callback, void *argument) {
       nullptr, nullptr, nullptr, nullptr,
       [](zx_status_t, void *data) {
         auto params = reinterpret_cast<Params *>(data);
-        params->callback({}, params->argument);
+        params->callback(SuspendedThreadsListFuchsia(), params->argument);
       },
       &params);
 }

compiler-rt/lib/sanitizer_common/sanitizer_stoptheworld_fuchsia.h

@@ -0,0 +1,20 @@
+//===-- sanitizer_stoptheworld_fuchsia.h ------------------------*- C++ -*-===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef SANITIZER_STOPTHEWORLD_FUCHSIA_H
+#define SANITIZER_STOPTHEWORLD_FUCHSIA_H
+
+#include "sanitizer_stoptheworld.h"
+
+namespace __sanitizer {
+
+class SuspendedThreadsListFuchsia final : public SuspendedThreadsList {};
+
+}  // namespace __sanitizer
+
+#endif  // SANITIZER_STOPTHEWORLD_FUCHSIA_H