Add a suppression for HALCADClientListener::HALCADClientListener().

tools/valgrind/memcheck/suppressions_mac.txt

Index: tools/valgrind/memcheck/suppressions_mac.txt
diff --git a/tools/valgrind/memcheck/suppressions_mac.txt b/tools/valgrind/memcheck/suppressions_mac.txt
index b0b86aff45ef4cd9240a28e1ae49a7e6544bd955..c1463a8567368853eda794f4289a3c35eb40cb75 100644
--- a/tools/valgrind/memcheck/suppressions_mac.txt
+++ b/tools/valgrind/memcheck/suppressions_mac.txt
@@ -1185,3 +1185,29 @@
    fun:_dyld_start
    obj:*
 }
+{
+   bug_46186
+   Memcheck:Leak
+   fun:malloc_zone_malloc
+   fun:_ZN4base12_GLOBAL__N_137oom_killer_cfallocator_system_defaultElmPv
+   fun:_CFRuntimeCreateInstance
+   fun:CFRunLoopSourceCreate
+   fun:MSHCreateMIGServerSource
+   fun:_ZN20HALCADClientListenerC2EPFlmmPK26AudioObjectPropertyAddressPvES3_
+   fun:_ZN12HALCADClient19AddPropertyListenerEmPK26AudioObjectPropertyAddressPFlmmS2_PvES3_
+   fun:_ZN16HALDefaultDevice22InstallServerListenersEv
+   fun:_ZN16HALDefaultDevice10InitializeEv
+   fun:_ZN9HALSystem16CheckOutInstanceEv
+   fun:AudioObjectAddPropertyListener
+   fun:_ZN10AQMEDeviceC2EmPK27AudioStreamBasicDescriptionPK18AudioChannelLayout
+   fun:_Z11NewAQIONodembPK27AudioStreamBasicDescriptionPK18AudioChannelLayout
+   fun:_ZN15AQIONodeManager13_FindAQIONodeEmbb
+   fun:_ZN15AQIONodeManager12FindAQIONodeEmbb
+   fun:_ZN16AudioQueueObject15DoIONodeConnectERK25AudioQueueStreamSpecifierPK27AudioStreamBasicDescriptionPK18AudioChannelLayout
+   fun:_ZN16AudioQueueObject13EnqueueBufferEP16AudioQueueBufferjPK28AudioStreamPacketDescriptionjjjPK24AudioQueueParameterEventRK11AQTimeStampPS8_
+   fun:AQServer_EnqueueBuffer
+   fun:AudioQueueEnqueueBufferWithParameters
+   fun:AudioQueueEnqueueBuffer
+   fun:_ZN28PCMQueueOutAudioOutputStream5StartEPN17AudioOutputStream19AudioSourceCallbackE
+   fun:_ZN17AudioRendererHost14IPCAudioSource4PlayEv
+}