cppgc: Fix compilation of death tests on iOS

iOS does not support death tests.

Bug: v8:10360
Change-Id: Ia86553d53eee811e5521c093fd034115a9d01750
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2128046
Commit-Queue: Michael Lippautz <mlippautz@chromium.org>
Commit-Queue: Omer Katz <omerkatz@chromium.org>
Auto-Submit: Michael Lippautz <mlippautz@chromium.org>
Reviewed-by: Omer Katz <omerkatz@chromium.org>
Cr-Commit-Position: refs/heads/master@{#66912}

test/unittests/heap/cppgc/gc-info_unittest.cc

@@ -40,7 +40,7 @@ TEST(GCInfoTableDeathTest, MoreThanMaxIndexInfos) {
        i++) {
     table.RegisterNewGCInfo(info);
   }
-  EXPECT_DEATH(table.RegisterNewGCInfo(info), "");
+  EXPECT_DEATH_IF_SUPPORTED(table.RegisterNewGCInfo(info), "");
 }
 
 TEST(GCInfoTableDeathTest, OldTableAreaIsReadOnly) {
@@ -62,7 +62,7 @@ TEST(GCInfoTableDeathTest, OldTableAreaIsReadOnly) {
   EXPECT_NE(limit, table.LimitForTesting());
   // Old area is now read-only.
   auto& first_slot = table.TableSlotForTesting(GCInfoTable::kMinIndex);
-  EXPECT_DEATH(first_slot.finalize = nullptr, "");
+  EXPECT_DEATH_IF_SUPPORTED(first_slot.finalize = nullptr, "");
 }
 
 namespace {

test/unittests/heap/cppgc/heap-object-header_unittest.cc

@@ -166,13 +166,13 @@ TEST(HeapObjectHeaderTest, ConstructionBitProtectsNonAtomicWrites) {
 TEST(HeapObjectHeaderDeathTest, ConstructorTooLargeSize) {
   constexpr GCInfoIndex kGCInfoIndex = 17;
   constexpr size_t kSize = HeapObjectHeader::kMaxSize + 1;
-  EXPECT_DEATH(HeapObjectHeader header(kSize, kGCInfoIndex), "");
+  EXPECT_DEATH_IF_SUPPORTED(HeapObjectHeader header(kSize, kGCInfoIndex), "");
 }
 
 TEST(HeapObjectHeaderDeathTest, ConstructorTooLargeGCInfoIndex) {
   constexpr GCInfoIndex kGCInfoIndex = GCInfoTable::kMaxIndex + 1;
   constexpr size_t kSize = kAllocationGranularity;
-  EXPECT_DEATH(HeapObjectHeader header(kSize, kGCInfoIndex), "");
+  EXPECT_DEATH_IF_SUPPORTED(HeapObjectHeader header(kSize, kGCInfoIndex), "");
 }
 
 #endif  // DEBUG