Revert the latest set of platform changes.

test/cctest/test-lock.cc

Index: test/cctest/test-lock.cc
diff --git a/test/cctest/test-semaphore.cc b/test/cctest/test-lock.cc
similarity index 74%
rename from test/cctest/test-semaphore.cc
rename to test/cctest/test-lock.cc
index e06d52d2ba69715e3f6018aca986136c65bbf9da..d4387d0f906787ebf12195ad1a789448cfde5b3a 100644
--- a/test/cctest/test-semaphore.cc
+++ b/test/cctest/test-lock.cc
@@ -1,4 +1,4 @@
-// Copyright 2006-2013 the V8 project authors. All rights reserved.
+// Copyright 2006-2008 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
@@ -25,7 +25,9 @@
 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 //
-// Tests of the Semaphore class from platform.h
+// Tests of the TokenLock class from lock.h
+
+#include <stdlib.h>
 
 #include "v8.h"
 
@@ -36,6 +38,33 @@
 using namespace ::v8::internal;
 
 
+// Simple test of locking logic
+TEST(Simple) {
+  Mutex* mutex = OS::CreateMutex();
+  CHECK_EQ(0, mutex->Lock());  // acquire the lock with the right token
+  CHECK_EQ(0, mutex->Unlock());  // can unlock with the right token
+  delete mutex;
+}
+
+
+TEST(MultiLock) {
+  Mutex* mutex = OS::CreateMutex();
+  CHECK_EQ(0, mutex->Lock());
+  CHECK_EQ(0, mutex->Unlock());
+  delete mutex;
+}
+
+
+TEST(ShallowLock) {
+  Mutex* mutex = OS::CreateMutex();
+  CHECK_EQ(0, mutex->Lock());
+  CHECK_EQ(0, mutex->Unlock());
+  CHECK_EQ(0, mutex->Lock());
+  CHECK_EQ(0, mutex->Unlock());
+  delete mutex;
+}
+
+
 TEST(SemaphoreTimeout) {
   bool ok;
   Semaphore* sem = OS::CreateSemaphore(0);