Remove isolate parameter when allocating handles

runtime/vm/debugger_api_impl_test.cc

Index: runtime/vm/debugger_api_impl_test.cc
diff --git a/runtime/vm/debugger_api_impl_test.cc b/runtime/vm/debugger_api_impl_test.cc
index a090a7656ea63837b1a0208e34d5b5185361f3fd..ca260f2eedfd04edfd221264b6a26d1d7b5e5086 100644
--- a/runtime/vm/debugger_api_impl_test.cc
+++ b/runtime/vm/debugger_api_impl_test.cc
@@ -2139,6 +2139,7 @@ TEST_CASE(Debug_GetSupertype) {
       "}\n";
 
   Isolate* isolate = Isolate::Current();
+  Zone* zone = isolate->current_zone();
   LoadScript(kScriptChars);
   ASSERT(script_lib != NULL);
   ASSERT(Dart_IsLibrary(script_lib));
@@ -2189,34 +2190,34 @@ TEST_CASE(Debug_GetSupertype) {
   }
   {
     Dart_Handle super_type = Dart_GetSupertype(Test1_type);
-    const Type& expected_type = Api::UnwrapTypeHandle(isolate, Test_type);
-    const Type& actual_type = Api::UnwrapTypeHandle(isolate, super_type);
+    const Type& expected_type = Api::UnwrapTypeHandle(zone, Test_type);
+    const Type& actual_type = Api::UnwrapTypeHandle(zone, super_type);
     EXPECT(expected_type.raw() == actual_type.raw());
   }
   {
     Dart_Handle super_type = Dart_GetSupertype(Test3_type);
-    const Type& expected_type = Api::UnwrapTypeHandle(isolate, Test2_int_type);
-    const Type& actual_type = Api::UnwrapTypeHandle(isolate, super_type);
+    const Type& expected_type = Api::UnwrapTypeHandle(zone, Test2_int_type);
+    const Type& actual_type = Api::UnwrapTypeHandle(zone, super_type);
     EXPECT(expected_type.raw() == actual_type.raw());
   }
   {
     Dart_Handle super_type = Dart_GetSupertype(Test4_int_type);
-    const Type& expected_type = Api::UnwrapTypeHandle(isolate, Test2_int_type);
-    const Type& actual_type = Api::UnwrapTypeHandle(isolate, super_type);
+    const Type& expected_type = Api::UnwrapTypeHandle(zone, Test2_int_type);
+    const Type& actual_type = Api::UnwrapTypeHandle(zone, super_type);
     EXPECT(expected_type.raw() == actual_type.raw());
   }
   {
     Dart_Handle super_type = Dart_GetSupertype(Test5_int_type);
-    const Type& expected_type = Api::UnwrapTypeHandle(isolate, Test4_int_type);
-    const Type& actual_type = Api::UnwrapTypeHandle(isolate, super_type);
+    const Type& expected_type = Api::UnwrapTypeHandle(zone, Test4_int_type);
+    const Type& actual_type = Api::UnwrapTypeHandle(zone, super_type);
     EXPECT(expected_type.raw() == actual_type.raw());
   }
   {
     Dart_Handle set_type = Dart_GetType(core_lib, set_name, 0, NULL);
     Dart_Handle super_type = Dart_GetSupertype(set_type);
     Dart_Handle iterable_type = Dart_GetType(core_lib, iterable_name, 0, NULL);
-    const Type& expected_type = Api::UnwrapTypeHandle(isolate, iterable_type);
-    const Type& actual_type = Api::UnwrapTypeHandle(isolate, super_type);
+    const Type& expected_type = Api::UnwrapTypeHandle(zone, iterable_type);
+    const Type& actual_type = Api::UnwrapTypeHandle(zone, super_type);
     EXPECT(expected_type.raw() == actual_type.raw());
   }
   {