[SYCL] Fix post-commit issues after PR#11548 (#11682)

* Fix unused parameters of function.
* Fix error caused by capturing structured binding which is available in
C++20 only.

Author: againull

sycl/source/handler.cpp

@@ -244,7 +244,8 @@ event handler::finalize() {
           KernelBundleImpPtr, MArgs);
 #endif
 
-      auto EnqueueKernel = [&]() {
+      auto EnqueueKernel = [&, CmdTraceEvent = CmdTraceEvent,
+                            InstanceID = InstanceID]() {
         // 'Result' for single point of return
         pi_int32 Result = PI_ERROR_INVALID_VALUE;
 #ifdef XPTI_ENABLE_INSTRUMENTATION

sycl/tools/sycl-trace/sycl_trace_collector.cpp

@@ -52,8 +52,8 @@ void TraceDiagnosticsMessage(xpti::trace_event_data_t * /*Parent*/,
 
 void TraceTaskExecutionSignals(xpti::trace_event_data_t * /*Parent*/,
                                xpti::trace_event_data_t *Event,
-                               const void *UserData, uint64_t InstanceID,
-                               bool IsBegin) {
+                               [[maybe_unused]] const void *UserData,
+                               uint64_t InstanceID, bool IsBegin) {
   if (!Event)
     return;
 
@@ -76,7 +76,8 @@ void TraceTaskExecutionSignals(xpti::trace_event_data_t * /*Parent*/,
 
 void TraceQueueLifetimeSignals(xpti::trace_event_data_t * /*Parent*/,
                                xpti::trace_event_data_t *Event,
-                               const void *UserData, bool IsCreation) {
+                               [[maybe_unused]] const void *UserData,
+                               bool IsCreation) {
   if (!Event)
     return;