[SYCL] Fix multi_lib_app test to accommodate build/run diffs on Windows CI. (#20195)

Windows CI sometimes builds on one machine and runs on another, and the
paths might differ. Fixing test to account for this.

Issue: #20023

Author: cperkinsintel

sycl/test-e2e/IntermediateLib/multi_lib_app.cpp

@@ -1,9 +1,6 @@
 // UNSUPPORTED: cuda || hip
 // UNSUPPORTED-TRACKER: CMPLRLLVM-69415
 
-// UNSUPPORTED: windows
-// UNSUPPORTED-TRACKER: https://github.com/intel/llvm/issues/20023
-
 // DEFINE: %{fPIC_flag} =  %if windows %{%} %else %{-fPIC%}
 // DEFINE: %{shared_lib_ext} = %if windows %{dll%} %else %{so%}
 
@@ -17,12 +14,17 @@
 //              So the hack here is to put heredoc in the definition
 //              and use single quotes, which Python forgivingly accepts.  
 // clang-format on 
+
+// On Windows, the CI sometimes builds on one machine and runs on another.
+// This means that %T might not be consistent between build and run.
+// So we use %{run-aux} to perform ALL actions on the run machine 
+// like we do for the AoT tests.
 
-// RUN: %{build} %{fPIC_flag} -DSO_PATH='R"(%T)"' -o %t.out
+// RUN: %{run-aux} %clangxx -fsycl  %{fPIC_flag} -DSO_PATH='R"(%T)"' -o %t.out %s
 
-// RUN:  %clangxx -fsycl %{fPIC_flag} -shared -DINC=1 -o %T/lib_a.%{shared_lib_ext} %S/Inputs/incrementing_lib.cpp
-// RUN:  %clangxx -fsycl %{fPIC_flag} -shared -DINC=2 -o %T/lib_b.%{shared_lib_ext} %S/Inputs/incrementing_lib.cpp
-// RUN:  %clangxx -fsycl %{fPIC_flag} -shared -DINC=4 -o %T/lib_c.%{shared_lib_ext} %S/Inputs/incrementing_lib.cpp
+// RUN:  %{run-aux} %clangxx -fsycl %{fPIC_flag} -shared -DINC=1 -o %T/lib_a.%{shared_lib_ext} %S/Inputs/incrementing_lib.cpp
+// RUN:  %{run-aux} %clangxx -fsycl %{fPIC_flag} -shared -DINC=2 -o %T/lib_b.%{shared_lib_ext} %S/Inputs/incrementing_lib.cpp
+// RUN:  %{run-aux} %clangxx -fsycl %{fPIC_flag} -shared -DINC=4 -o %T/lib_c.%{shared_lib_ext} %S/Inputs/incrementing_lib.cpp
 
 // RUN:  env UR_L0_LEAKS_DEBUG=1 %{run} %t.out