[cleanup] Fix the way how Zones are created in tests

Bug: v8:10506
Change-Id: I9405616566aaec47bfc47cfe2290dc6953e532ad
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2280082
Auto-Submit: Igor Sheludko <ishell@chromium.org>
Commit-Queue: Clemens Backes <clemensb@chromium.org>
Reviewed-by: Clemens Backes <clemensb@chromium.org>
Cr-Commit-Position: refs/heads/master@{#68669}

test/unittests/wasm/function-body-decoder-unittest.cc

@@ -72,7 +72,7 @@ using F = std::pair<ValueType, bool>;
 class TestModuleBuilder {
  public:
   explicit TestModuleBuilder(ModuleOrigin origin = kWasmOrigin)
-      : allocator(), mod(std::make_unique<Zone>(&allocator, "TEST_ZONE")) {
+      : allocator(), mod(std::make_unique<Zone>(&allocator, ZONE_NAME)) {
     mod.origin = origin;
   }
   byte AddGlobal(ValueType type, bool mutability = true) {

test/unittests/wasm/subtyping-unittest.cc

@@ -10,7 +10,7 @@ namespace internal {
 namespace wasm {
 namespace subtyping_unittest {
 
-class WasmSubtypingTest : public TestWithZone {};
+class WasmSubtypingTest : public ::testing::Test {};
 using FieldInit = std::pair<ValueType, bool>;
 
 ValueType ref(uint32_t index) { return ValueType::Ref(index, kNonNullable); }
@@ -35,8 +35,7 @@ void DefineArray(WasmModule* module, FieldInit element_type) {
 
 TEST_F(WasmSubtypingTest, Subtyping) {
   v8::internal::AccountingAllocator allocator;
-
-  WasmModule module_(std::make_unique<Zone>(*(zone())));
+  WasmModule module_(std::make_unique<Zone>(&allocator, ZONE_NAME));
 
   WasmModule* module = &module_;