[NFC] Add comments about tracking issues

Author: jsji

sycl/test-e2e/DeviceImageDependencies/NewOffloadDriver/free_function_kernels.cpp

@@ -1,6 +1,7 @@
 // Ensure -fsycl-allow-device-dependencies can work with free function kernels.
 
 // REQUIRES: aspect-usm_shared_allocations, pdtracker
+// PDTRACKER: https://github.com/intel/llvm/issues/18432
 // RUN: %{build} -o %t.out --offload-new-driver -fsycl-allow-device-image-dependencies
 // RUN: %{run} %t.out
 

sycl/test-e2e/NewOffloadDriver/multisource.cpp

@@ -6,6 +6,7 @@
 //
 //===----------------------------------------------------------------------===//
 // REQUIRES: pdtracker
+// PDTRACKER: https://github.com/intel/llvm/issues/18432
 // Separate kernel sources and host code sources
 // Test with `--offload-new-driver`
 // RUN: %{build} --offload-new-driver -c -o %t.kernel.o -DINIT_KERNEL -DCALC_KERNEL

sycl/test-e2e/NewOffloadDriver/split-per-source-main.cpp

@@ -1,4 +1,5 @@
 // REQUIRES: pdtracker
+// PDTRACKER: https://github.com/intel/llvm/issues/18432
 // RUN: %{build} -Wno-error=unused-command-line-argument -fsycl-device-code-split=per_source -I %S/Inputs -o %t.out %S/Inputs/split-per-source-second-file.cpp \
 // RUN: --offload-new-driver -fsycl-dead-args-optimization
 // RUN: %{run} %t.out

sycl/test-e2e/NewOffloadDriver/sycl-external-with-optional-features.cpp

@@ -1,4 +1,5 @@
 // REQUIRES: pdtracker
+// PDTRACKER: https://github.com/intel/llvm/issues/18432
 // Test with `--offload-new-driver`
 // RUN: %{build} -DSOURCE1 --offload-new-driver -c -o %t1.o
 // RUN: %{build} -DSOURCE2 --offload-new-driver -c -o %t2.o