[OpenMP][Tests][NFC] Mark tests trying to link COI as unsupported

For some tests with target-related functionality icc 18/19 tries to link
libioffload_target.so.5, which fails for missing COI symbols.

GitOrigin-RevId: 047890bc3f922e9ffdc5210577d14a4de63ed944
diff --git a/runtime/test/api/omp_get_num_devices.c b/runtime/test/api/omp_get_num_devices.c
index d534fa3..da79b95 100644
--- a/runtime/test/api/omp_get_num_devices.c
+++ b/runtime/test/api/omp_get_num_devices.c
@@ -1,4 +1,7 @@
 // RUN: %libomp-compile-and-run
+// Linking fails for icc 18
+// UNSUPPORTED: icc-18
+
 #include <stdio.h>
 #include "omp_testsuite.h"
 
diff --git a/runtime/test/api/omp_pause_resource.c b/runtime/test/api/omp_pause_resource.c
index 32c1120..e4aaa51 100644
--- a/runtime/test/api/omp_pause_resource.c
+++ b/runtime/test/api/omp_pause_resource.c
@@ -1,4 +1,8 @@
 // RUN: %libomp-compile-and-run
+
+// Linking fails for icc 18/19
+// UNSUPPORTED: icc-18, icc-19
+
 #include <stdio.h>
 #include "omp_testsuite.h"
 
diff --git a/runtime/test/critical/omp_critical_with_hint.c b/runtime/test/critical/omp_critical_with_hint.c
index 68c7269..4ffdd91 100644
--- a/runtime/test/critical/omp_critical_with_hint.c
+++ b/runtime/test/critical/omp_critical_with_hint.c
@@ -1,4 +1,7 @@
 // RUN: %libomp-compile-and-run
+// critial with hint was introduced with icc 19
+// UNSUPPORTED: icc-18
+
 #include <stdio.h>
 #include <omp.h>
 #include "omp_testsuite.h"
diff --git a/runtime/test/teams/kmp_num_teams.c b/runtime/test/teams/kmp_num_teams.c
index 26a3c3d..06b0586 100644
--- a/runtime/test/teams/kmp_num_teams.c
+++ b/runtime/test/teams/kmp_num_teams.c
@@ -1,5 +1,7 @@
 // RUN: %libomp-compile-and-run
 // UNSUPPORTED: gcc
+// Linking fails for icc 18/19
+// UNSUPPORTED: icc-18, icc-19
 
 #include <stdio.h>
 #include <stdlib.h>