[test] Skip test with FLAG_single_generation

Test needs young generation to work properly.

Bug: v8:12380
Change-Id: I5dca5bd6be10371ee9aabf263c4f8491917b9803
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3275556
Commit-Queue: Dominik Inführ <dinfuehr@chromium.org>
Commit-Queue: Michael Lippautz <mlippautz@chromium.org>
Auto-Submit: Dominik Inführ <dinfuehr@chromium.org>
Reviewed-by: Michael Lippautz <mlippautz@chromium.org>
Cr-Commit-Position: refs/heads/main@{#77844}

test/cctest/heap/test-compaction.cc

@@ -362,7 +362,7 @@ HEAP_TEST(CompactionPartiallyAbortedPageIntraAbortedPointers) {
 }
 
 HEAP_TEST(CompactionPartiallyAbortedPageWithRememberedSetEntries) {
-  if (!FLAG_compact) return;
+  if (!FLAG_compact || FLAG_single_generation) return;
   // Test the scenario where we reach OOM during compaction and parts of the
   // page have already been migrated to a new one. Objects on the aborted page
   // are linked together and the very first object on the aborted page points