Fix couple of vm/cc/DartAPI_* tests for the dartk configuration.

runtime/vm/unit_test.h

 // Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 #ifndef RUNTIME_VM_UNIT_TEST_H_
 #define RUNTIME_VM_UNIT_TEST_H_
 
 #include "include/dart_native_api.h"
 
 #include "platform/globals.h"
@@ skipping 211 matching lines @@
       0, 0, false, true))
 #define EXECUTE_TEST_CODE_INT32_D(name, entry, double_arg)                     \
   static_cast<int32_t>(Simulator::Current()->Call(                             \
       bit_cast<int32_t, uword>(entry),                                         \
       Utils::Low32Bits(bit_cast<int64_t, double>(double_arg)),                 \
       Utils::High32Bits(bit_cast<int64_t, double>(double_arg)), 0, 0, false,   \
       true))
 #endif  // defined(HOST_ARCH_ARM)
 #endif  // defined(TARGET_ARCH_{ARM, ARM64})
 
+#define ZONE_STR(FMT, ...)                                                     \
+  OS::SCreate(Thread::Current()->zone(), FMT, __VA_ARGS__)
+
 inline Dart_Handle NewString(const char* str) {
   return Dart_NewStringFromCString(str);
 }
 
 namespace dart {
 
 // Forward declarations.
 class Assembler;
 class CodeGenerator;
 class VirtualMemory;
@@ skipping 384 matching lines @@
   ~SetFlagScope() { *flag_ = original_value_; }
 
  private:
   T* flag_;
   T original_value_;
 };
 
 }  // namespace dart
 
 #endif  // RUNTIME_VM_UNIT_TEST_H_