Added new type of unit test, RAW_UNIT_TEST_CASE, which is used for tests that can be flaky if run w…

runtime/vm/unit_test.h

Index: runtime/vm/unit_test.h
diff --git a/runtime/vm/unit_test.h b/runtime/vm/unit_test.h
index 945fd6e8378b88ed8045a6672439cfc73e770a68..e0077ddb41229b0a6c28428fb7210e4707f136c1 100644
--- a/runtime/vm/unit_test.h
+++ b/runtime/vm/unit_test.h
@@ -28,6 +28,14 @@
   static const dart::TestCase kRegister##name(Dart_Test##name, #name);         \
   void Dart_Test##name()
 
+// The RAW_UNIT_TEST_CASE macro is used for tests that do not require any of the
+// functionality provided by the VM. Tests declared using this macro will be run
+// before the VM is initialized.
+#define RAW_UNIT_TEST_CASE(name)                                               \
+  void Dart_Test##name();                                                      \
+  static const dart::RawTestCase kRegister##name(Dart_Test##name, #name);      \
+  void Dart_Test##name()
+
 // The VM_TEST_CASE macro is used for tests that need an isolate and zone
 // in order to test its functionality. This macro is used for tests that
 // are implemented using the VM code directly and do not use the Dart API
@@ -261,6 +269,10 @@ class TestCaseBase {
   void RunTest();
 
   static void RunAll();
+  static void RunAllRaw();
+
+ protected:
+  bool raw_test_;
 
  private:
   static TestCaseBase* first_;
@@ -323,6 +335,20 @@ class TestCase : TestCaseBase {
 };
 
 
+class RawTestCase : TestCaseBase {
+ public:
+  typedef void(RunEntry)();
+
+  RawTestCase(RunEntry* run, const char* name) : TestCaseBase(name), run_(run) {
+    raw_test_ = true;
+  }
+  virtual void Run();
+
+ private:
+  RunEntry* const run_;
+};
+
+
 class TestIsolateScope {
  public:
   TestIsolateScope() {