Log V8 version in profiler log file.

test/cctest/test-log.cc

Index: test/cctest/test-log.cc
diff --git a/test/cctest/test-log.cc b/test/cctest/test-log.cc
index 6fe3a561b4d68ebd7ad3ddebc8d26fe625191206..cb47e2d60df81fafd6a90330b6caeb055809b570 100644
--- a/test/cctest/test-log.cc
+++ b/test/cctest/test-log.cc
@@ -42,6 +42,7 @@
 #include "src/natives.h"
 #include "src/utils.h"
 #include "src/v8threads.h"
+#include "src/version.h"
 #include "src/vm-state-inl.h"
 #include "test/cctest/cctest.h"
 
@@ -507,3 +508,27 @@ TEST(EquivalenceOfLoggingAndTraversal) {
   }
   isolate->Dispose();
 }
+
+
+TEST(LogVersion) {
+  v8::Isolate* isolate;
+  {
+    ScopedLoggerInitializer initialize_logger;
+    isolate = initialize_logger.isolate();
+    bool exists = false;
+    i::Vector<const char> log(
+        i::ReadFile(initialize_logger.StopLoggingGetTempFile(), &exists, true));
+    CHECK(exists);
+    i::EmbeddedVector<char, 100> ref_data;
+    i::SNPrintF(ref_data,
+                "v8-version,%d,%d,%d,%d,%d",
+                i::Version::GetMajor(),
+                i::Version::GetMinor(),
+                i::Version::GetBuild(),
+                i::Version::GetPatch(),
+                i::Version::IsCandidate());
+    CHECK_NE(NULL, StrNStr(log.start(), ref_data.start(), log.length()));
+    log.Dispose();
+  }
+  isolate->Dispose();
+}